Alstar - Buying Guide
Last Updated: 04/18/2024
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Alstar Binocular Tripod Adapter for Roof and Porro Binoculars
Asin: B074FQS9ZM | Model: SKU_AM_TABA | PartNumber: SKU_AM_TABA | Ean: 6970019291710
Simple And Durable, The Mount Tripod Adapter Provides A Rigid And Secure Base Near The Center Of The Roof Binoculars And Eliminate Image-Shake In High-Power Roof Binoculars..
Experience The Fascination Of A Vibration Free Observation With Both Of Your Eyes! For As Long As You Want To, Without Your Arms Getting Tired..
Contrary To Observations With A Spotting Scope Your Observations With Binoculars Will Be Much More Relaxing, Because You Can Use Both Of Your Eyes And Don't Have To Keep One Shut..
Outfitted With A Socket For Tripod-Adaptors, Can Be Connected To Tripods With A 6.35Mm (1/4") Thread Fast And Easily..
Features
- High quality metal material: Solid and steady for one time purchase, long-term use. Fits most binoculars equipped with adapter screws. Helps you view your object with more stability on a tripod.
- Outfitted with a socket for tripod-adaptors, can be connected to tripods with a 6.35mm (1/4) thread fast and easily.
- Simple and durable, the mount tripod adapter provides a rigid and secure base near the center of the Roof binoculars and Eliminate image-shake in high-power Roof binoculars.
- Contrary to observations with a spotting scope your observations with binoculars will be much more relaxing, because you can use both of your eyes and don't have to keep one shut.
- Experience the fascination of a vibration free observation with both of your eyes! For as long as you want to, without your arms getting tired.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 2.00 x 5.40 x 2.00 Inches | Weight: 0.14 Pounds
See On Amazon #2
Alstar Universal Quick Release Finder Shoe Base for Schmidt Cassegrains and Other Telescope 130-400mm Diameter - for MQR III&IV/Witty One and V-Bracket - Black
Asin: B08FWX9SJT | Model: SKU_AM_UQRFSBAS | PartNumber: SKU_AM_UQRFSBAS
【Multi-Function】 There Are Two Elongated Holes On This Base And A Single Countersunk Hole For Screws Up To M5 In The Middle. Two Screws Are On The On Side Of Base. The Spacing Between The Two Screws Is 24 To 41 Mm..
【Practical Funcationality】 Synta-Style Dovetail Base -- Fit Most Bracket Designs From Celestron, Orion, Sky-Watcher, Vixen, Etc. Compliable With Finder Scope, Laser Pointer Bracket On Telescopes..
【Well-Engineered In Shape】 The Base Forms Two Linear Constraints On Each Tube Radius Of 130-400Mm In Diameter, Which Gives Maximum Stability. The Base Also Carries Small Guidance/Ccd Guider Without Any Problem..
【Easy To Install】 Two Large Knurled Thumbscrews Makes It Easy To Install: Bases Feature Two Large Thumbscrew Locks To Secure Your Finder Scope Or Reflex Sight In Place, Even While Wearing Gloves. Just Put It On The Optical Tube And Tighten The Screws..
Features
- Aluminium Alloy Material Made of high strength Aluminum with Anodizing Aluminium Process. Precision machined solid aluminum finder shoe base in matte black, for almost all viewfinder holders, for the "Witty 1" Tangent-attachment etc, fits all lens barrel radii.
- Easy to Install Two large knurled thumbscrews makes it easy to install: Bases feature two large thumbscrew locks to secure your finder scope or reflex sight in place, even while wearing gloves. Just put it on the optical tube and tighten the screws.
- Multi-Function There are two elongated holes on this base and a single countersunk hole for screws up to M5 in the middle. Two screws are on the on side of base. The spacing between the two screws is 24 to 41 mm.
- Well-Engineered in Shape The base forms two linear constraints on each tube radius of 130-400mm in diameter, which gives maximum stability. The base also carries small guidance/CCD guider without any problem.
- Practical Funcationality Synta-style dovetail base -- Fit most bracket designs from Celestron, Orion, Sky-watcher, Vixen, etc. Compliable with finder scope, Laser Pointer bracket on telescopes.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 3.10 x 1.70 x 1.60 inches | Weight: 0.02 pounds
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Alstar 2" to 1.25" Telescope Eyepiece Adapter
Asin: B074FQWFH2 | Model: SKU_AM_ZA2T1TEA | PartNumber: SKU_AM_ZA2T1TEA | Ean: 6970019291611
Great For Performing Lunar And Planetary Viewing In Larger Telescopes..
Ideal For Using High-Power, Low Focal Length 1.25" Eyepieces In A Big 2" Telescope Focuser..
This Is A Very High Quality Anodized Aluminum Adapter That Has Filter Threads At The Bottom For 2" Telescope Filters..
An Affordable Way To Increase The Number Of Eyepieces To Use With Your 2" Focuser-Equipped Telescope..
Features
- Allows you to use 1.25" eyepieces in any 2" telescopes focuser, star diagonal, or holder.
- An affordable way to increase the number of eyepieces to use with your 2 focuser-equipped telescope.
- Great for performing lunar and planetary viewing in larger telescopes.
- This is a very high quality anodized aluminum adapter that has filter threads at the bottom for 2 telescope filters.
- Ideal for using high-power, low focal length 1.25 eyepieces in a big 2 telescope focuser.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 3.00 x 3.00 x 2.00 inches | Weight: 0.20 Pounds
See On Amazon #4
Alstar Anti-Vibration Suppression Pads Telescope Mounts
Asin: B08FSW1C22 | Model: SKU_AM_TMASPAS | PartNumber: SKU_AM_TMASPAS
【Multi-Function】Ideally Suitable For Astronomy, Nature Observations, Photography And Much More. Reduces The Oscillation Time For The Image To Settle Down And Stop Shaking And Muffles The Strength Of Oscillations. During The Shooting, Keep The Tripod Clean. And It Can Withstand Heavier Telescopes..
【100% Satisfaction】We Provide 2-Year Warranty. If You Have Any Question With Our Product, Please Contact Us Freely..
【Practical Design】These Pads Are Sold In Sets Of 3 (One For Each Tripod Leg), The Center Of The Product Is Designed With Different Diameters Of Stripe To Fit Different Sizes Of Tripod. The Orange Rubber Strip In The Middle Has A Buffer Function, Effectively Block The Vibration..
【Prevent Vibrations】These Pads Are Designed To Reduce Vibration Time By Almost 100%. In Future, Save Yourself The Annoyance Of Shaky Images And Get Yourself Some Real Help For Frustration-Free Observing And Astrophotography..
Features
- Practical and Durable The product is of small shape and convenient to carry around. Good quality, long-term use. Sun-proof, water-repellent and washable, anti-slip, moisture-proof.
- Prevent Vibrations These pads are designed to reduce vibration time by almost 100%. In future, save yourself the annoyance of shaky images and get yourself some real help for frustration-free observing and astrophotography.
- Multi-Function Ideally suitable for astronomy, nature observations, photography and much more. Reduces the oscillation time for the image to settle down and stop shaking and muffles the strength of oscillations. During the shooting, keep the tripod clean. And it can withstand heavier telescopes.
- Practical Design These pads are sold in sets of 3 (one for each tripod leg), the center of the product is designed with different diameters of stripe to fit different sizes of tripod. The orange rubber strip in the middle has a buffer function, effectively block the vibration.
- 100% Satisfaction We provide 2-YEAR Warranty. If you have any question with our product, please contact us freely.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 0.70 x 9.30 x 3.30 Inches | Weight: 0.75 Pounds
See On Amazon #5
Alstar AccuFocus Electronic Telescope Focuser
Asin: B08L2YYX1Q | Model: SKU_AM_TFAEAS | PartNumber: SKU_AM_TFAEAS
The Control Box Requires A Standard 9V Battery To Operate(The 9V Battery Goes Into The Battery Compartment In The Rear Of The Control Box), Which Can Choose Speeds From Coarse To Very Fine With The Adjustable Speed Control Knob On The Box..
Accufocus Electronic Focuser Cannot Be Used On Maka, Dob Type Telescopes And Telescopes With Apo Two-Speed Focusing, But Only On Telescopes With Single-Speed Focusing, Such As Some Brands Of Refractors And Reflectors In The 60-127Mm Range. (Please Feel Free To Contact Us If You Have Any Pre-Sales Queries).
Choose Speeds From Coarse To Very Fine With The Adjustable Speed Control Knob For Precise Focus Adjustments ..
There Are Three Installation Methods For This Electronic Telescope Focuser That Is Simple To Install And Makes Achieving Sharp Focus Easy..
Features
- The electronic telescope focuser kit contains a variety of parts including two different types of focuser brackets, hardware and coil cables.
- There are three installation methods for this electronic telescope focuser that is simple to install and makes achieving sharp focus easy.
- The control box requires a standard 9V battery to operate(The 9V battery goes into the battery compartment in the rear of the control box), which can choose speeds from coarse to very fine with the adjustable speed control knob on the box.
- Choose speeds from coarse to very fine with the adjustable speed control knob for precise focus adjustments .
- Accufocus electronic focuser cannot be used on Maka, DOB type telescopes and telescopes with APO two-speed focusing, but only on telescopes with single-speed focusing, such as some brands of refractors and reflectors in the 60-127mm range. (Please feel free to contact us if you have any pre-sales queries)
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Brand: A ALSTAR | Manufacturer: Alstar
Weight: 0.93 Pounds
See On Amazon #6
Alstar f/6.3 Reducer Corrector for C Series Telescopes
Asin: B077GQ3JLX | Model: SKU_AM_RC63A | PartNumber: SKU_AM_RC63A | Ean: 6971336221282
This Combination Focal Reducer And Field Corrector Lens Accessory Works With All Celestron 5", 6", 8", 9 1/4", 11" And 14" Schmidt-Cassegrain Telescopes..
This Clever Accessory Makes It Possible To Have A Dual Focal Ratio Instrument, Without Sacrificing Image Quality..
Four-Element, Fully Multi-Coated Optical Design With 41Mm Clear Aperture..
Reducer Shortens The Effective Focal Length Of Schmidt-Cassegrain Telescope Optical System By 37%..
Features
- Converts f/10 optical system to faster f/6.3 for a significantly wider field of view.
- Reducer shortens the effective focal length of Schmidt-Cassegrain telescope optical system by 37%.
- This combination focal reducer and field corrector lens accessory works with all Celestron 5, 6, 8, 9 1/4, 11 and 14 Schmidt-Cassegrain telescopes.
- Four-element, fully multi-coated optical design with 41mm clear aperture.
- This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality.
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Brand: Alstar | Manufacturer: Alstar
Dimensions: 2.40 x 3.30 x 2.90 inches | Weight: 0.30 Pounds
See On Amazon #7
Alstar 1.25" Astrophotography Flip Mirror with Eyepiece Adapter - The flip Mirror for Precise Focusing
Asin: B074FHW712 | Model: SKU_AM_AFMA | PartNumber: SKU_AM_AFMA | Ean: 6970019291581
Always Sharp: If You Tilt The Mirror To The 45° Position, The Object Will Then Appear In The Eyepiece And You Will Be Able To Precisely Focus It As Usual. The Helical Focuser On The Flip Mirror Lets You Make The Eyepiece And Camera Exactly Parfocal With Each Other. This Means That Both Elements Will Be In Focus At The Same Time..
An Advantage With All Cameras: No Finder Is Provided With Popular Webcams Or Astronomical Ccd Cameras For Helping Position The Object On The Chip. Only By Taking Test Exposures Is It Possible To Achieve Both Sharp Focus And The Correct Object Position. The Flip Mirror Is A Big Help Here As The Object Has Already Been Centred And Focused 'Remotely' On The Chip Via The Eyepiece..
Connectability: The Alstar Flip Mirror Has A 1.25" Connector Which Will Fit Onto Any Standard Telescope. The Helical Focuser Will Accept Any Standard 1.25" Eyepiece. There Is A T-2 Thread Provided On The Camera Side - The Standard Fitting For All Cameras..
For Precise Focusing: In Astrophotography, If You Want To Take Successful Astronomy Photographs, Accurate Focusing Is Only One Half Of The Story. The Alstar Flip Mirror Makes It Very Simple To Find Both The Exact Focus Point And Also The Correct Positioning For Your Astronomy Photographs. This Small Black Box Has A Moveable Flip Mirror Which Shunts The Light Path 90°Upwards Or, Alternatively, Lets It Pass Through Unhindered..
Features
- An object that is accurately centred in the eyepiece will be simultaneously centred in the camera's field of view. You no longer have to worry about whether the object is correctly positioned on the chip - you know it will be.
- For precise focusing: In astrophotography, if you want to take successful astronomy photographs, accurate focusing is only one half of the story. The Alstar flip mirror makes it very simple to find both the exact focus point and also the correct positioning for your astronomy photographs. This small black box has a moveable flip mirror which shunts the light path 90 upwards or, alternatively, lets it pass through unhindered.
- Always sharp: If you tilt the mirror to the 45 position, the object will then appear in the eyepiece and you will be able to precisely focus it as usual. The helical focuser on the flip mirror lets you make the eyepiece and camera exactly parfocal with each other. This means that both elements will be in focus at the same time.
- Connectability: The Alstar flip mirror has a 1.25 connector which will fit onto any standard telescope. The helical focuser will accept any standard 1.25 eyepiece. There is a T-2 thread provided on the camera side - the standard fitting for all cameras.
- An advantage with all cameras: No finder is provided with popular webcams or astronomical CCD cameras for helping position the object on the chip. Only by taking test exposures is it possible to achieve both sharp focus and the correct object position. The flip mirror is a big help here as the object has already been centred and focused 'remotely' on the chip via the eyepiece.
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Brand: Alstar | Manufacturer: Alstar
Dimensions: 5.30 x 6.00 x 3.10 inches | Weight: 0.62 pounds
See On Amazon #8
Alstar C Mount to 1.25" Video Camera Barrel Adapter Telescope Astrophotography - for one C-Mount (Male Thread) to 1.25" Eyepiece convertor for telescopes
Asin: B074FXLV7F | Model: SKU_AM_CMAT1A | PartNumber: SKU_AM_CMAT1A | Ean: 6970019291437
For One High Quality C-Mount (Male Thread) To 1.25" (Fit Any Telescope With 1.25" Eyepiece Tube) Eyepiece Convertor For Telescopes..
The Opposite End Of This Adapter Has A C-Mount (1 Inch Diameter With 32 Threads Per Inch) Standard For All "C"Inama Photography Movie Cameras..
Watch The Moon Or Even Local Scenery From Your Living Room Hdtv With A C-Mount Video Cam Or Any Device With A Vga Socket. The Inside Of The Adapter Is Fully Threaded To Minimize Reflections,Made Of Black Anodized Aluminum..
The Telescope Adapter Has A Diameter Of 1.25 Inches For Insertion In Place Of A 1.25 Inch Telescope Eyepiece, Allows The Camera To Be Put Into Standard 1.25" Eyepiece Holders..
Features
- For a 1.25" adapter to use C or CS mount CCTV type cameras with telescopes,threaded to accept standard 1.25" filters.
- The telescope adapter has a diameter of 1.25 inches for insertion in place of a 1.25 inch telescope eyepiece, allows the camera to be put into standard 1.25 eyepiece holders.
- For one high quality C-mount (male thread) to 1.25 (fit any telescope with 1.25 eyepiece tube) eyepiece convertor for telescopes.
- Watch the moon or even local scenery from your living room HDTV with a C-Mount Video Cam or any device with a VGA socket. The inside of the adapter is fully threaded to minimize reflections,made of black anodized aluminum.
- The opposite end of this adapter has a C-Mount (1 inch diameter with 32 threads per inch) standard for all Cinama photography movie cameras.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.60 x 1.60 x 1.50 inches | Weight: 0.04 Pounds
See On Amazon #9
Alstar M48X0.75 (2" Filter) Female to M42X0.75 T / T2 Male Thread Telescope Adapter
Asin: B074FVZ6SC | Model: SKU_AM_M48FM42A | PartNumber: SKU_AM_M48FM42A | Ean: 6970019291567
With It You Can Convert A Male M48 Thread To A Male T2 Thread With Minimum Possible Mechanical Length..
Converts An M48 Male Thread To A T2 Male Thread..
M48-M42. All Metal Construction And Anodizing Aluminium Process, Durable For Long Time Use..
M48*0.75 Female Thread (For 2" Adapter)To M42*0.75 Male Thread Adapter..
Features
- This is a very high quality anodized aluminum adapter.
- M48*0.75 female thread (for 2 adapter)to M42*0.75 male thread adapter.
- With it you can convert a male M48 thread to a male T2 thread with minimum possible mechanical length.
- M48-M42. All metal construction and anodizing aluminium process, durable for long time use.
- Converts an M48 male thread to a T2 male thread.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 2.00 x 2.00 x 0.10 inches
See On Amazon #10
Alstar Alignment 1.25" Next Generation Laser Collimator for Newtonian Telescopes
Asin: B077GRYCK8 | Model: SKU_AM_ZAA1025A | PartNumber: SKU_AM_ZAA1025A | Ean: 6971336221558
The Precision-Made Aluminium Housing Of The Laser Unit Has A Front Opening From Which The Laser Beam Can Be Emitted. In Order To Obtain An Optimal Adjustment, It Has A Side Window Allowing A Disk Oriented At 45° With A Central Hole To Be Viewed.This Can Be Then Later Be Used To See Whether The Laser Is Reflected Back On Itself, Indicating Well Collimated Optics..
Designed For Reflector Telescope, Fit For Standard 1.25 Inch Diameter. Red Laser Collimation Beam With 7 Brightness Levels, Wavelength 635-655 Nm; Output Power: Less Than 5Mw, Much Safer For Your Eyes. This Sturdy Laser Unit Allows You To Swiftly And Precisely Collimate Your Newtonian Telescope. Only When The Optics Have Been Accurately Collimated Can The Telescope Offer You Its Full Performance..
Built With Metal Material. Cr2032 Lithium Cell Battery (Not Include) ; Accurate Collimation In A Few Minutes Provide A More Clearer Image. The Telescope Can Be Collimated By Just One Person..
This Adjustment Tool Can Be Used In All 1.25" Focusers. We Provide You With Precise Instructions In German And English, With A Step-By-Step Explanation Of How To Adjust A Newtonian Telescope Using This Laser Unit. So, Even If You Are A Newcomer To Amateur Astronomy, It Is Very Simple To Get The Optimum Performance Out Of Your Telescope..
Features
- The laser comes fully adjusted. It can however be further adjusted if required. It has three openings for adjustment, arranged at 120 , which are initially sealed. The battery for the laser can be exchanged at any time; the small screw cap at the rear of the laser must be first unscrewed to allow this.
- This adjustment tool can be used in all 1.25 focusers. We provide you with precise instructions in German and English, with a step-by-step explanation of how to adjust a Newtonian telescope using this laser unit. So, even if you are a newcomer to amateur astronomy, it is very simple to get the optimum performance out of your telescope.
- The precision-made aluminium housing of the laser unit has a front opening from which the laser beam can be emitted. In order to obtain an optimal adjustment, it has a side window allowing a disk oriented at 45 with a central hole to be viewed.This can be then later be used to see whether the laser is reflected back on itself, indicating well collimated optics.
- Built with metal material. CR2032 Lithium Cell battery (Not include) ; Accurate collimation in a few minutes provide a more clearer image. The telescope can be collimated by just one person.
- Designed for Reflector telescope, fit for standard 1.25 inch diameter. Red laser collimation beam with 7 brightness levels, wavelength 635-655 nm; Output power: less than 5mw, much safer for your eyes. This sturdy laser unit allows you to swiftly and precisely collimate your Newtonian telescope. Only when the optics have been accurately collimated can the telescope offer you its full performance.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.30 x 5.00 x 1.30 inches | Weight: 0.25 Pounds
See On Amazon #11
Alstar 0.5X Reducer for Photography and Observing - 1.25" Filter Thread (28.5x0.75MM) on Both Sides - Reduces The Focal Length for Visual and Photographic Use
Asin: B07R1VMK3C | Model: SKU_AM_RC05XA3 | PartNumber: SKU_AM_RC05XA3 | Ean: 6971336228892
Mounting Threads - 1.25" Filter Thread (28.5X0.75Mm) On Both Sides: Threads Into Eyepieces, Camera Adapters, And Other Accessories With Standard 1.25" Threads, And Can Be Stacked With Additional 1.25" Threaded Accessories..
85Mm Focal Length, Reduction Factor Of About 0.5X, Depending On Spacing. 0.5X Focal Reducer Effectively Halves The Focal Length Of A Telescope, Enabling Lower Magnification, A Wider Field Of View, And Shorter Exposure Times For Astrophotography..
2 Lenses For Better Correction - Cemented Together And Coated, Black-Anodized Aluminum Housing. Eces: Expand Your Telescope Accessories With This Cased 2" Eyepiece Set (40Mm, 32Mm And 26Mm In Focal Length) And Use It To Get Into The Fascinating World Of Deep Sky Observing. The Larger Lenses Mean You Get A Much Larger Field Of View Than With 1.25" Eyepieces Of The Same Focal Length. The Generous Eye Relief Also Means That They Are Very Comfortable To Use - Even When Wearing Glasses..
Free Light Transmission - 22.5Mm Lens Aperture. Can Be Used With Additional Spacers (Available Separately) To Achieve Further Focal Reduction..
Features
- Intended for use with with longer-focal-ratio telescopes and eyepieces of narrow to moderately-wide apparent fields of view.
- Free light transmission - 22.5mm lens aperture. Can be used with additional spacers (available separately) to achieve further focal reduction.
- Mounting threads - 1.25 filter thread (28.5x0.75MM) on both sides: Threads into eyepieces, camera adapters, and other accessories with standard 1.25 threads, and can be stacked with additional 1.25 threaded accessories.
- 2 lenses for better correction - cemented together and coated, black-anodized aluminum housing. eces: Expand your telescope accessories with this cased 2 eyepiece set (40mm, 32mm and 26mm in focal length) and use it to get into the fascinating world of deep sky observing. The larger lenses mean you get a much larger field of view than with 1.25 eyepieces of the same focal length. The generous eye relief also means that they are very comfortable to use - even when wearing glasses.
- 85mm focal length, reduction factor of about 0.5X, depending on spacing. 0.5x focal reducer effectively halves the focal length of a telescope, enabling lower magnification, a wider field of view, and shorter exposure times for astrophotography.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 0.90 x 2.00 x 2.00 inches | Weight: 0.05 Pounds
See On Amazon #12
Alstar T T2 Lens to Fuji FX Mount Camera Adapter and M42 to 1.25" Telescope Adapter (T-Mount) - Universal Screw in for X-T1 X-A1 X-E2 X-M1 X-E1 X-PRO1
Asin: B0779R1KC7 | Model: SKU_AM_T2N1FXTA | PartNumber: SKU_AM_T2N1FXTA | Ean: 6971336220919
All Metal Construction And Anodizing Aluminium Process, Durable For Long Time Use..
Compatible With: Fuji Film Fx X-T1 X-A1 X-E2 X-M1 X-E1 X-Pro1 Camera..
It Is Very Easy To Use. Simply Attach This Adapter To Your Camera The Same Way As You Attach A Lens Then Screw Your T2 Lens Or Accessory Into The Adapter..
Inner Ring Can Be Rotated With A Standard Allen Key (Allen Key Provided) To Ensure Lens Is Always Right Way Up..
Features
- Having the right equipment to shoot art-gallery images of the heavens starts with the right telescope, camera and camera adapter, and ends here.
- Inner ring can be rotated with a standard allen key (allen key provided) to ensure lens is always right way up.
- All metal construction and anodizing aluminium process, durable for long time use.
- It is very easy to use. Simply attach this adapter to your camera the same way as you attach a lens then screw your T2 lens or accessory into the adapter.
- Compatible with: Fuji film FX X-T1 X-A1 X-E2 X-M1 X-E1 X-Pro1 Camera.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.70 x 2.80 x 2.80 inches | Weight: 0.10 pounds
See On Amazon #13
Alstar 1.25" 90-Degree Diagonal Mirror
Asin: B074DR3LGC | Model: SKU_AM_DM1D90AR | PartNumber: SKU_AM_DM1D90AR | Ean: 6970019299785
More Comfortable Viewing Orientation As You Observe From Above, Filter Thread For Any 1.25" Filter. Accepts Standard 1.25" Eyepieces..
1.25" 90-Degree Mirror Star Diagonal For Any Telescope With 1.25" Connector (Not Suitable For Newtonians)..
Useful For Refractor And Cassegrain Telescopes - Not Recommended For Reflectors..
Protective Coating On The Mirror To Ensure A Long Life, Metal Barrel - For Secure Seating In The Focuser..
Features
- Wide 90 degree angle: You can view correct image from refractor telescope stand and just look down with a comfortable angle.
- Protective coating on the mirror to ensure a long life, metal barrel - for secure seating in the focuser.
- More comfortable viewing orientation as you observe from above, filter thread for any 1.25 filter. Accepts standard 1.25 eyepieces.
- Useful for refractor and Cassegrain telescopes - not recommended for reflectors.
- 1.25 90-degree mirror star diagonal for any telescope with 1.25 connector (not suitable for Newtonians).
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 2.80 x 4.40 x 2.10 inches | Weight: 0.25 pounds
See On Amazon #14
Alstar 1.25" 25mm Plossl Telescope Eyepiece - 4-Element Plossl Design - Threaded for Standard 1.25inch Astronomy Filters
Asin: B08SLNQZ1W | Model: SKU_AM_PT125AS | PartNumber: SKU_AM_PT125AS
1.25- Inch 25Mm Plossl Eyepiece Set , Gives The Widest Viewing Field Along With Extra Sharpness And Long Eye Relief..
Fold-Down Rubber Eyeguard Threaded For Standard 1.25- Inch Astronomy Filters..
4-Element Plossl Design, Has A Approx 52 Degree Afov. Perfect For Broad-Field Lunar Observations, Medium-Sized Star Clusters, And A Wide Range Of Cloudy Nebulas And Deep-Sky Targets..
Comes With Sturdy Plastic Case-Proect The Eyepiece From Dust And Moisture..
Features
- Threaded for standard barlow lens and diagonal Mirror.
- Comes with sturdy plastic case-proect the eyepiece from dust and moisture.
- 1.25- inch 25mm plossl eyepiece set , gives the widest viewing field along with extra sharpness and long eye relief.
- 4-element plossl design, has a approx 52 degree AFOV. Perfect for broad-field lunar observations, medium-sized star clusters, and a wide range of cloudy nebulas and deep-sky targets.
- Fold-down rubber eyeguard Threaded for standard 1.25- inch astronomy filters.
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Brand: Alstar | Manufacturer: Alstar
Dimensions: 1.90 x 1.30 x 3.30 inches | Weight: 0.02 Pounds
See On Amazon #15
Alstar 1.25" 0.5X Reducer Corrector - C-Mount Standard for C Or CS Mount CCTV Type Cameras with Telescopes - Reduces The Focal Length for Visual and Photographic Use
Asin: B08KST6T2F | Model: SKU_AM_RC05XCSAS | PartNumber: SKU_AM_RC05XCSAS
A Wider Field Of View, And Shorter Exposure Times For Astrophotography. 2 Lenses For Better Correction - Cemented Together And Coated, Black-Anodized Aluminum Housing..
85Mm Focal Length, Reduction Factor Of About 0.5X, Depending On Spacing. 0.5X Focal Reducer Effectively Halves The Focal Length Of A Telescope, Enabling Lower Magnification..
Mounting Threads - 1.25" Filter Thread (28.5X0.75 Mm) On One Sides, The Opposite End Of This Adapter Has A C-Mount (1 Inch Diameter With 32 Threads Per Inch) Standard For C Or Cs Mount Cctv Type Cameras With Telescopes..
Free Light Transmission - 22.5Mm Lens Aperture. Can Be Used With Additional Spacers (Available Separately) To Achieve Further Focal Reduction..
Features
- Intended for use with with longer-focal-ratio telescopes and eyepieces of narrow to moderately-wide apparent fields of view.
- Free light transmission - 22.5mm lens aperture. Can be used with additional spacers (available separately) to achieve further focal reduction.
- A wider field of view, and shorter exposure times for astrophotography. 2 lenses for better correction - cemented together and coated, black-anodized aluminum housing.
- Mounting threads - 1.25 filter thread (28.5x0.75 MM) on one sides, the opposite end of this adapter has a C-Mount (1 inch diameter with 32 threads per inch) standard for C or CS mount CCTV type cameras with telescopes.
- 85mm focal length, reduction factor of about 0.5X, depending on spacing. 0.5x focal reducer effectively halves the focal length of a telescope, enabling lower magnification.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 0.90 x 2.00 x 2.00 inches | Weight: 0.04 pounds
See On Amazon #16
Alstar 1.25" 45-Degree Diagonal Prism Optical Prism Inside Rather Than a Mirror which Makes Your Image Clear and Sharp
Asin: B074DQP34N | Model: SKU_AM_DP1D45AR | PartNumber: SKU_AM_DP1D45AR | Ean: 6970019299761
More Comfortable Viewing Orientation As You Observe From Above, Filter Thread For Any 1.25" Filter. Accepts Standard 1.25" Eyepieces..
Protective Coating On The Mirror To Ensure A Long Life, Metal Barrel - For Secure Seating In The Focuser..
This Is A Great Diagonal For Daytime Terrestrial Use And Night Time Astronomy Applications For Telescopes Or Spotting Scopes..
1.25" 45-Degree Mirror Star Diagonal For Any Telescope With 1.25" Connector (Not Suitable For Newtonians)..
Features
- High quality optical Prism inside rather than a mirror which makes your image clear and sharp.
- 1.25 45-degree mirror star diagonal for any telescope with 1.25 connector (not suitable for Newtonians).
- More comfortable viewing orientation as you observe from above, filter thread for any 1.25 filter. Accepts standard 1.25 eyepieces.
- This is a great diagonal for daytime terrestrial use and night time astronomy applications for telescopes or spotting scopes.
- Protective coating on the mirror to ensure a long life, metal barrel - for secure seating in the focuser.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 2.80 x 4.40 x 2.10 inches | Weight: 0.20 Pounds
See On Amazon #17
Alstar M42X0.75 Female to M42X0.75 Female Thread Telescope Adapter - 9mm
Asin: B074J1QS85 | Model: SKU_AM_M42FTM42F9A | PartNumber: SKU_AM_M42FTM42F9A | Ean: 6970019291888
Converts An M42x0.75 Male Thread To A M42x0.75 Female Thread..
This Is A Very High Quality Anodized Aluminum Adapter..
Makes It Possible To Attach M42x0.75 Male Thread And M42x0.75 Male Thread Accessories Together. Such As, You Can Upgrade Your R&P Focuser By Adding "Alstar 1.25" High Precision Double Helical Focuser" To The End Of The R&P Focuser, If There Is M42x0.75 Male Thread On The R&P Focuser. This Adapter Will Play Very Important Part In Connecting "Alstar 1.25" High Precision Double Helical Focuser"And R&P Focuser..
M42x0.75 Female Thread On Both Sides..
Features
- All metal construction and anodizing aluminium process, durable for long time use.
- M42X0.75 female thread on both sides.
- Converts an M42X0.75 male thread to a M42X0.75 female thread.
- Makes it possible to attach M42X0.75 male thread and M42X0.75 male thread accessories together. Such as, you can upgrade your R&P focuser by adding Alstar 1.25 High Precision Double Helical Focuser to the end of the R&P focuser, if there is M42X0.75 male thread on the R&P focuser. This adapter will play very important part in connecting Alstar 1.25 High Precision Double Helical Focuserand R&P focuser.
- This is a very high quality anodized aluminum adapter.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 0.60 x 2.80 x 2.80 inches | Weight: 0.03 Pounds
See On Amazon #18
Alstar Bahtinov Mask Focusing Mask for Telescopes - FM200mm for a Tube Outer Diameter (OD) from 215mm-260mm
Asin: B077FMLDMX | Model: SKU_AM_BFM200A | PartNumber: SKU_AM_BFM200A | Ean: 6971336221015
The Masks Grip The Telescope Tube Gently But Firmly With Three Metal Posts Which Have Non-Scratching Silicon Sleeves To Protect You Valued Telescope Surface. This Prevents Slippage, Whilst Allowing The Mask To Remaining Perfectly Central. Because Of This 3-Post Mounting, The Mask Remains Centered, Whilst Fitting A Wider Range Of Telescopes..
Bahtinov Masks Take The Guesswork Out Of Focusing And Even Get Over The Seeing Conditions As It Is A Mathematical Type Approach To The Task.The Best Focus For Your Telescope Quickly And Easily..
Suitable For Use On All Types Of Telescope - Reflectors, Rafractors, Dobsonians, Mak-Cas And Scts. They Are Made From Precision Laser Cut Enforced Plexiglass, Which Is Stiff And Long Lasting. They Will Never Be Brittle In The Cold, Unlike Some Other Masks Which Are Made From Normal Plastics..
They Are Made From 2Mm Thick Laser Cut Abs And The Securing Screws Are Capped With Soft Plastic So That They Do Not Damage Your Telescope.These High Quality Bahtinov Masks Are Adjustable To Fit A Wide Range Of Optical Tubes, Unlike Masks Which Are Only Able To Fit One Telescope. They Have Adjustment Latitude Of About 215-260Mm, Depending On Model, In Aperture Making Them Very Versatile..
Features
- Please be assured that these focusing masks will work excellently for both reflectors and refractors with whatever focal length. All you need to do is to measure your telescope tube size and choose the right size of the mask (contact us if you are not sure where to measure).
- They are made from 2mm thick laser cut abs and the securing screws are capped with soft plastic so that they do not damage your telescope.These high quality Bahtinov masks are adjustable to fit a wide range of optical tubes, unlike masks which are only able to fit one telescope. They have adjustment latitude of about 215-260mm, depending on model, in aperture making them very versatile.
- The masks grip the telescope tube gently but firmly with three metal posts which have non-scratching silicon sleeves to protect you valued telescope surface. This prevents slippage, whilst allowing the mask to remaining perfectly central. Because of this 3-post mounting, the mask remains centered, whilst fitting a wider range of telescopes.
- Suitable for use on all types of telescope - reflectors, rafractors, Dobsonians, Mak-Cas and SCTs. They are made from precision laser cut enforced plexiglass, which is stiff and long lasting. They will never be brittle in the cold, unlike some other masks which are made from normal plastics.
- Bahtinov masks take the guesswork out of focusing and even get over the seeing conditions as it is a mathematical type approach to the task.The best focus for your telescope quickly and easily.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 0.10 x 5.10 x 5.10 inches | Weight: 0.40 Pounds
See On Amazon #19
Alstar 1.25" Narrowband NBPF Hydrogen-a 12nm Filter - Enhances The Contrast Between Object and Sky - Allows You to Take Images Even Under Urban Skies
Asin: B07787L1B6 | Model: SKU_AM_HF112A | PartNumber: SKU_AM_HF112A | Ean: 6971336220421
Young Stars Embedded In The Bright Red Of A Nebula - An H-Alpha Filter Is The Expert If You Want To Capture Hydrogen Nebulae In All Their Glory..
Astrophotography Under A Light-Polluted Night Sky Can Be Difficult. The Solution Is An H-Alpha Filter. The Alstar H-Alpha Cut-Off Filter Works To Filter Out A Large Part Of This Light Pollution..
With A Bandpass Of 12Nm, Only Light Above 660Nm Is Allowed Into Your Camera - Whether Under Dark Skies Or Under The Sky Glow Of A City. That Means The Filter Also Blocks The Infamous Stray Light And Light From Mercury And Sodium Vapour Lamps..
The Alstar H-Aplha Cut-Off Filter Enhances The Contrast Between Object And Sky, Allowing You To Take Good Quality Images Even Under Urban Skies..
Features
- Metal filter cell threads directly into the 1.25-inch barrel of your telescope eyepiece. Mounted in a nicely anodized housing.
- The Alstar H-aplha cut-off filter enhances the contrast between object and sky, allowing you to take good quality images even under urban skies.
- Young stars embedded in the bright red of a nebula - an H-alpha filter is the expert if you want to capture hydrogen nebulae in all their glory.
- With a bandpass of 12nm, only light above 660nm is allowed into your camera - whether under dark skies or under the sky glow of a city. That means the filter also blocks the infamous stray light and light from mercury and sodium vapour lamps.
- Astrophotography under a light-polluted night sky can be difficult. The solution is an H-alpha filter. The Alstar H-alpha cut-off filter works to filter out a large part of this light pollution.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 0.70 x 2.10 x 1.70 Inches | Weight: 0.02 pounds
See On Amazon #20
Alstar 2" Adjustable Extention Tube Camera Adapter - Adjustable Length Adapter Lets You Attach A T-Ring Equipped DSLR Or SLR Camera Directly to Your Telescope
Asin: B074FWRX1L | Model: SKU_AM_VUCA2 | PartNumber: SKU_AM_VUCA2 | Ean: 6970019291734
Compatible For Both Reflector And Refractor Telescopes With 2" Eyepiece Holders..
The 2" Adjustable Extention Tube Camera Adapter Is Made Of Black-Anodized Aluminum..
In Addition, The Adapter Works Well For Refractor Telescopes When In Use For Either Prime-Focus Or Telescope Eyepiece-Projection Photography..
Dual Design Allows The User To Make Slight Magnification Adjustments Without Having To Change Telescope Eyepieces..
Features
- This easy to use 2" Adjustable Extention Tube Camera Adapter is designed to attach both camera body and reflector together.
- Dual design allows the user to make slight magnification adjustments without having to change telescope eyepieces.
- Compatible for both reflector and refractor telescopes with 2 eyepiece holders.
- In addition, the adapter works well for refractor telescopes when in use for either prime-focus or telescope eyepiece-projection photography.
- The 2 Adjustable Extention Tube Camera Adapter is made of black-anodized aluminum.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 3.40 x 5.90 x 3.40 inches | Weight: 0.35 Pounds
See On Amazon #21
Alstar Astronomical 2"/M48-extension Tube Kit for Cameras and eyepieces - Length 5mm 8mm 10mm 30mm - M48x0.75 on Both Sides
Asin: B074J7HBT6 | Model: SKU_AM_M48EXT5813A | PartNumber: SKU_AM_M48EXT5813A | Ean: 6970019292069
【Aluminium Alloy Material】High-Quality All-Metal Construction And Anodizing Aluminium Process, Durable For Long Time Use..
【100% Satisfaction】We Provide 2-Year Warranty. If You Have Any Question With Our Product, Please Contact Us Freely..
【Eliminate Extra Light】The Design Of The Internal Thread Can Eliminate Stray Light And Reflected Light, Making The Image Clearer And Perfect.
【Variable Combination】 The Required Spacing Can Be Achieved By Combining Several Extenders Of Differing Lengths,You Can Use 1 Piece, 2 Pieces , 3 Pieces Or 4 Pieces Of The Extension Rings As You Like. Use This Extension Tube For Getting The Correct Image Scale Or The Exact Spacing Required For Reducers Or Field Flatteners..
Features
- Eliminate Focusing Problem The extension tube has a M48*0.75 interior thread and a M48*0.75 exterior thread, elegantly solves the spacing problems in astrophotography and eliminates a series of focusing problems.
- Variable Combination The required spacing can be achieved by combining several extenders of differing lengths,you can use 1 piece, 2 pieces , 3 pieces or 4 pieces of the extension rings as you like. Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners.
- Aluminium Alloy Material High-quality all-metal construction and anodizing aluminium process, durable for long time use.
- Eliminate Extra Light The design of the internal thread can eliminate stray light and reflected light, making the image clearer and perfect
- 100% Satisfaction We provide 2-YEAR Warranty. If you have any question with our product, please contact us freely.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.20 x 10.00 x 5.30 inches | Weight: 0.12 Pounds
See On Amazon #22
Alstar Middle-Sizes Dovetail with one Screw - for telescopes and Cameras
Asin: B077GPSKYS | Model: SKU_AM_ZBDM2A | PartNumber: SKU_AM_ZBDM2A | Ean: 6971336221473
Areal Clamping - Protects The Accessories And Provides A Very Stable Connection, Two Drilled (But Not Threaded) In The Middle With To Accommodate Screws Up To 6Mm In Diameter, Center-To-Center Screw Hole Spacing Is From 27 To 43Mm..
Simply Screw The Dovetail Clamp Onto Your Photo Tripod Or Tripod Head, And You Can Mount Your Telescope On The Tripod..
A Generously Dimensioned Surface With 25 Mm Width Presses The Bar Against The Othe Side Of The Clamp..
For Attaching The Clamp, 7 Bores Are Available For M6 And 1/4" Screws. Four M6 Bores At 38 Mm Distance Square, One M6 Bores Lengthwise. One 1/4" Tripod Thread In The Middle With Two Drilled (But Not Threaded) To Accommodate Screws Up To 6Mm In Diameter, Center-To-Center Screw Hole Spacing Is From 27 To 43Mm. All Functions, Especially The Clamping, Are Completely Kept. The Clamping Screw Can Be Used Without Problems..
Features
- The clamp itself can be adapted to a mount, to the counterweight shaft or another dovetail bar, building a double connection.
- For attaching the clamp, 7 bores are available for M6 and 1/4 screws. Four M6 bores at 38 mm distance square, one M6 bores lengthwise. One 1/4 tripod thread in the middle with two drilled (but not threaded) to accommodate screws up to 6mm in diameter, center-to-center screw hole spacing is from 27 to 43mm. All functions, especially the clamping, are completely kept. The clamping screw can be used without problems.
- Areal clamping - protects the accessories and provides a very stable connection, two drilled (but not threaded) in the middle with to accommodate screws up to 6mm in diameter, center-to-center screw hole spacing is from 27 to 43mm.
- A generously dimensioned surface with 25 mm width presses the bar against the othe side of the clamp.
- Simply screw the dovetail clamp onto your photo tripod or tripod head, and you can mount your telescope on the tripod.
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Brand: Alstar | Manufacturer: Alstar
Dimensions: 2.00 x 4.40 x 2.60 inches
See On Amazon #23
Alstar 1.25" 4-Elements 5X Barlow Lens Fully Multi-Coated Optics
Asin: B074CS7FVD | Model: SKU_AM_BL14X5A | PartNumber: SKU_AM_BL14X5A | Ean: 6970019299716
Featuring A High-Quality 4-Element Lens Design, The Alstar High-Power 5X Barlow Will Render Exquisite Images Without Introducing Additional Chromatic Abberation While Providing A Monstrous 5X Power Boost..
The Lenses Are Also Edge-Blackened To Further Maximize Contrast And Sharpness..
The Barlow Lens Elements Are Fully Multi-Coated With Anti-Reflection Coatings To Ensure Maximum Light Throughput For Bright, Crisp Views..
The Alstar High-Power 5X 4-Element Barlow Lens Quintuples The Power Of Any 1.25" Telescope Eyepiece..
Features
- The 1.25 barrel is internally threaded for use with Alstar 1.25" eyepiece and imaging filters. The inside of the 5x High-Power Barlow's barrel is also glare threaded to help prevent internal reflections.
- The Alstar High-Power 5x 4-Element Barlow Lens quintuples the power of any 1.25 telescope eyepiece.
- Featuring a high-quality 4-element lens design, the Alstar High-Power 5x Barlow will render exquisite images without introducing additional chromatic abberation while providing a monstrous 5x power boost.
- The Barlow lens elements are fully multi-coated with anti-reflection coatings to ensure maximum light throughput for bright, crisp views.
- The lenses are also edge-blackened to further maximize contrast and sharpness.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 2.60 x 5.50 x 2.50 inches | Weight: 0.28 Pounds
See On Amazon #24
Alstar Alignment 1.25" Next Generation Laser Collimator 2" Adaptor for Newtonian Telescopes
Asin: B078JJ8SL1 | Model: SKU_AM_ZAA10252A3 | PartNumber: SKU_AM_ZAA10252A3 | Ean: 6971336223446
The Precision-Made Aluminium Housing Of The Laser Unit Has A Front Opening From Which The Laser Beam Can Be Emitted. In Order To Obtain An Optimal Adjustment, It Has A Side Window Allowing A Disk Oriented At 45° With A Central Hole To Be Viewed.This Can Be Then Later Be Used To See Whether The Laser Is Reflected Back On Itself, Indicating Well Collimated Optics..
Designed For Reflector Telescope, With Removable 2" Adapter Both Fit For Standard 1.25 Inch Diameter And 2 Inch Diameter. Red Laser Collimation Beam With 7 Brightness Levels, Wavelength 635-655 Nm; Output Power: Less Than 5Mw, Much Safer For Your Eyes. This Sturdy Laser Unit Allows You To Swiftly And Precisely Collimate Your Newtonian Telescope. Only When The Optics Have Been Accurately Collimated Can The Telescope Offer You Its Full Performance..
Built With Metal Material. Cr2032 Lithium Cell Battery (Not Include) ; Accurate Collimation In A Few Minutes Provide A More Clearer Image. The Telescope Can Be Collimated By Just One Person..
This Adjustment Tool Can Be Used In All 1.25" Focusers. We Provide You With Precise Instructions In German And English, With A Step-By-Step Explanation Of How To Adjust A Newtonian Telescope Using This Laser Unit. So, Even If You Are A Newcomer To Amateur Astronomy, It Is Very Simple To Get The Optimum Performance Out Of Your Telescope..
Features
- The laser comes fully adjusted. It can however be further adjusted if required. It has three openings for adjustment, arranged at 120 , which are initially sealed. The battery for the laser can be exchanged at any time; the small screw cap at the rear of the laser must be first unscrewed to allow this.
- This adjustment tool can be used in all 1.25 focusers. We provide you with precise instructions in German and English, with a step-by-step explanation of how to adjust a Newtonian telescope using this laser unit. So, even if you are a newcomer to amateur astronomy, it is very simple to get the optimum performance out of your telescope.
- The precision-made aluminium housing of the laser unit has a front opening from which the laser beam can be emitted. In order to obtain an optimal adjustment, it has a side window allowing a disk oriented at 45 with a central hole to be viewed.This can be then later be used to see whether the laser is reflected back on itself, indicating well collimated optics.
- Built with metal material. CR2032 Lithium Cell battery (Not include) ; Accurate collimation in a few minutes provide a more clearer image. The telescope can be collimated by just one person.
- Designed for Reflector telescope, with removable 2 adapter both fit for standard 1.25 inch diameter and 2 inch diameter. Red laser collimation beam with 7 brightness levels, wavelength 635-655 nm; Output power: less than 5mw, much safer for your eyes. This sturdy laser unit allows you to swiftly and precisely collimate your Newtonian telescope. Only when the optics have been accurately collimated can the telescope offer you its full performance.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 2.40 x 8.30 x 3.30 inches | Weight: 0.54 Pounds
See On Amazon #25
Alstar 2" to 1.25" Telescope II Eyepiece Adapter
Asin: B074FT2MBP | Model: SKU_AM_ZA2T1TE2A | PartNumber: SKU_AM_ZA2T1TE2A | Ean: 6970019291604
Use Twist Lock Adapter As A High-End Reduction Ring. It Is Gentle With The Accessories And Yet Clamps Them In Place With Incredible Force..
Ideal For Using High-Power, Low Focal Length 1.25" Eyepieces In A Big 2" Telescope Focuser..
Allows You To Use 1.25" Eyepieces In Any 2" Telescopes Focuser, Star Diagonal, Or Holder.One Twist, And Your Accessories Sit Firmly In Place, Gentle Clamping Over A Large Area..
This Is A Very High Quality Anodized Aluminum Adapter, Self-Centring 2" To 1.25" Adapter With 2" Thread..
Features
- An affordable way to increase the number of eyepieces to use with your 2" focuser-equipped telescope.
- This is a very high quality anodized aluminum adapter, self-centring 2 to 1.25 adapter with 2 thread.
- Use Twist Lock adapter as a high-end reduction ring. It is gentle with the accessories and yet clamps them in place with incredible force.
- Allows you to use 1.25 eyepieces in any 2 telescopes focuser, star diagonal, or holder.One twist, and your accessories sit firmly in place, gentle clamping over a large area.
- Ideal for using high-power, low focal length 1.25 eyepieces in a big 2 telescope focuser.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 2.40 x 2.70 x 1.80 inches | Weight: 0.22 Pounds
See On Amazon #26
Alstar 1.25" Extendable Camera Adapter - for Either Prime-focus Or Eyepiece-projection Astrophotography with Refractors or Reflector Telescopes - Threaded for Standard 1.25inch Astronomy Filters
Asin: B074FRK9XB | Model: SKU_AM_CA1EA | PartNumber: SKU_AM_CA1EA | Ean: 6970019291758
Compatible For Both Reflector And Refractor Telescopes With 1.25" Eyepiece Holders..
The 1.25" Variable Universal Camera Adapter Is Made Of Black-Anodized Aluminum..
This Easy To Use 1.25" Variable Universal Camera Adapter Is Designed To Attach Both Camera Body And Reflector Together..
In Addition, The Adapter Works Well For Refractor Telescopes When In Use For Either Prime-Focus Or Telescope Eyepiece-Projection Photography..
Features
- Dual design allows the user to make slight magnification adjustments without having to change telescope eyepieces.
- In addition, the adapter works well for refractor telescopes when in use for either prime-focus or telescope eyepiece-projection photography.
- Compatible for both reflector and refractor telescopes with 1.25 eyepiece holders.
- This easy to use 1.25 Variable Universal Camera Adapter is designed to attach both camera body and reflector together.
- The 1.25 Variable Universal Camera Adapter is made of black-anodized aluminum.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 2.40 x 5.10 x 2.40 inches | Weight: 0.35 Pounds
See On Amazon #27
Alstar Telescope LRGB 2 Inch Filter Set - Give Stunning Astrophotographic Results
Asin: B0778GNVN3 | Model: SKU_AM_LRGB2A | PartNumber: SKU_AM_LRGB2A | Ean: 6971336220698
Combining Separate Astrophotographs Taken Through These Lrgb Filters Produces Finer Resolution And Amazing Color..
These 2" Imaging Filters Let You Create Dazzling Three-Step Rgb Astrophotos - Just Like The Pros..
Red, Blue, And Green Filters Plus The Haze-Eliminating Luminance Filter Give Stunning Astrophotographic Results..
Housing In A Solid Foam Packing, Together With Plastic Transparent Case..
Features
- The Alstar LRGB Filter Set includes four filters, 2" luminance Filter, 2" Red Filter, 2" Green Filter 2" Blue Filter.
- Housing in a solid foam packing, together with plastic transparent case.
- Combining separate astrophotographs taken through these LRGB filters produces finer resolution and amazing color.
- Red, blue, and green filters plus the haze-eliminating Luminance filter give stunning astrophotographic results.
- These 2 imaging filters let you create dazzling three-step RGB astrophotos - just like the pros.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 2.20 x 2.20 x 2.80 Inches
See On Amazon #28
Alstar 2" ED 2X Dual Power Telescope Barlow Lens for Telescopes
Asin: B074CSJ226 | Model: SKU_AM_BL2EDA | PartNumber: SKU_AM_BL2EDA | Ean: 6970019299709
2" 2X Achromatic Barlow Increases The Magnification Of Each Eyepiece And Effectively Doubles Or Triples The Number Of Eyepieces At Your Disposal..
Barlow Element Separates From Extension Tube And Threads Directly Into A 2" Eyepiece For 2X Increase In Magnification..
Full Unit Increases Magnification Of Eyepiece By 2X.Threaded For Use With 2" Filters..
Very High-Quality Barlow That Is Versatile - You Can Unscrew The Lens And Screw It Into Your 2" Eyepiece..
Features
- Two-element, fully-multicoated lenses with excellent color correction, sharpness, and image brightness.
- Very high-quality barlow that is versatile - you can unscrew the lens and screw it into your 2 eyepiece.
- 2 2x achromatic Barlow increases the magnification of each eyepiece and effectively doubles or triples the number of eyepieces at your disposal.
- Full unit increases magnification of eyepiece by 2x.Threaded for use with 2 filters.
- Barlow element separates from extension tube and threads directly into a 2 eyepiece for 2x increase in magnification.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 3.40 x 6.00 x 3.00 inches | Weight: 0.30 Pounds
See On Amazon #29
Alstar Finderscope Starpointer for Astronomical Telescopes
Asin: B078JDYRYP | Model: SKU_AM_TRSTBA2 | PartNumber: SKU_AM_TRSTBA2 | Ean: 6971336223453
Includes Bracket That Fits The Dovetail Mounting Base On Many Telescopes..
Simple, Affordable, And Effective Red Dot Sighting Device Makes Aiming Your Telescope A Cinch!.
Brightness Of The Red Dot Is Adjustable To Suit Your Preference. Requires Cr-2032 Lithium Button-Cell Battery (Not Include)..
Thumbwheels Allow Positioning Of The Red Dot Horizontally And Vertically For Precise Telescope Alignment..
Features
- A small red LED dot is projected onto a non-magnifying viewing window so you can aim the main telescope quickly and easily.
- Thumbwheels allow positioning of the red dot horizontally and vertically for precise telescope alignment.
- Includes bracket that fits the dovetail mounting base on many telescopes.
- Brightness of the red dot is adjustable to suit your preference. Requires CR-2032 lithium button-cell battery (Not Include).
- Simple, affordable, and effective red dot sighting device makes aiming your telescope a cinch!
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.70 x 5.20 x 3.90 inches
See On Amazon #30
Alstar 2-Inch Telescope Eyepiece Extension Tube Adapter - Optical Length 35mm - with Standand 2-Inch Filter Threads
Asin: B074J5BL47 | Model: SKU_AM_ETA235A | PartNumber: SKU_AM_ETA235A | Ean: 6970019291826
Extension Tube Provides Extra Focuser "Back Travel" Often Needed For Short-Range Terrestrial Viewing Through A Telescope, Or For Astrophotographic Applications..
With This Simple And Useful Device, You Can Extend The Focal Length Of Your Telescope 35Mm Or A Little More. The Various Models Have Focal Lengths Of 35Mm, 50Mm And 80Mm Which You Can Find In Our Store, The Required Spacing Can Be Achieved By Combining Several Extenders Of Differing Lengths,You Can Use 1 Piece, 2 Pieces , 3 Pieces Of The Extension Tube Adapter As You Like..
Fits In 2" Telescope Focusers, And Accepts 2" Eyepieces Or Accessories. Threaded For Use With Standand 2-Inch Astrophotography Filters..
Machined Of High Quality Aluminum And Anodized Black, Durable For Long Time Use..
Features
- Features two locking thumbscrews to secure any inserted astronomy accessory, with a brass compression insh to prevent the marring of your telescope accessories.
- Machined of high quality aluminum and anodized black, durable for long time use.
- Extension tube provides extra focuser back travel often needed for short-range terrestrial viewing through a telescope, or for astrophotographic applications.
- Fits in 2 telescope focusers, and accepts 2 eyepieces or accessories. Threaded for use with standand 2-Inch astrophotography filters.
- With this simple and useful device, you can extend the focal length of your telescope 35mm or a little more. The various models have focal lengths of 35mm, 50mm and 80mm which you can find in our store, the required spacing can be achieved by combining several extenders of differing lengths,you can use 1 piece, 2 pieces , 3 pieces of the extension tube adapter as you like.
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Brand: Alstar | Manufacturer: Alstar
Dimensions: 3.20 x 2.70 x 2.70 inches | Weight: 0.24 Pounds
See On Amazon