Alstar 2" 2 inch to M48X0.75 Adapter for Telescope Eyepiece Lens
Asin: B074FVR3X1 | Model: SKU_AM_2TM48A | PartNumber: SKU_AM_2TM48A | Ean: 6970019291512
As an Amazon Associate we earn a fee from qualifying purchases when you follow a link to Amazon from this page. We rank the products, but the links to Amazon are promotional.This Auction Is For One High Quality 2" To M48*0.75 Adapter For Telescope..
The Female Thread (M48*0.75) At The Rear End To Accept 2" Astronomy Filters..
Male Thread M48*0.75. Tube Length:39Mm..
Glossy Black Anodized Finish Outside; Painted Flat Black And Grooved Inside For Maximum Contrast..
Features
- Standard 48mm (M48 x 0.75) male thread on one side to connect to diagonal body.
- Glossy black anodized finish outside; painted flat black and grooved inside for maximum contrast.
- This auction is for one high quality 2 to M48*0.75 adapter for telescope.
- Male thread M48*0.75. Tube length:39mm.
- The female thread (M48*0.75) at the rear end to accept 2 astronomy filters.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.50 x 1.50 x 2.00 inches | Weight: 0.10 pounds
See On Amazon Similar To Alstar 2 2 inch to
#1
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 #2
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, Resistant 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, resistant 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 #3
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, Resistant 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, resistant 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 #4
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 #5
Alstar 2-Inch Telescope Eyepiece Extension Tube Adapter - Optical Length 50mm - with Standand 2-Inch Filter Threads
Asin: B074J4H9FB | Model: SKU_AM_ETA250A | PartNumber: SKU_AM_ETA250A | Ean: 6970019291833
Machined Of High Quality Aluminum And Anodized Black, Resistant For Long Time Use..
With This Simple And Useful Device, You Can Extend The Focal Length Of Your Telescope 80Mm 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..
Features Two Locking Thumbscrews To Secure Any Inserted Astronomy Accessory, With A Brass Compression Insh To Prevent The Marring Of Your Telescope Accessories..
Features
- Extension tube provides extra focuser "back travel" often needed for short-range terrestrial viewing through a telescope, or for astrophotographic applications.
- 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, resistant for long time use.
- 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 80mm 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.
- See more on Amazon...
Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 3.20 x 2.70 x 2.70 inches | Weight: 0.30 pounds
See On Amazon #6
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, Resistant 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, resistant 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.
- See more on Amazon...
Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.20 x 10.00 x 5.30 inches | Weight: 0.12 pounds
See On Amazon #7
Alstar Astronomical 2"/M48-extension Tube Kit for Cameras and eyepieces - Length 8mm 10mm 20mm 30mm - M48x0.75 on Both Sides
Asin: B074J786B4 | Model: SKU_AM_M48EXT8123A | PartNumber: SKU_AM_M48EXT8123A | Ean: 6970019292076
Use This Extension Tube For Getting The Correct Image Scale Or The Exact Spacing Required For Reducers Or Field Flatteners..
All Metal Construction And Anodizing Aluminium Process, Resistant For Long Time Use..
Male Thread - M48*0.75. Female Thread - M48*0.75, Eliminates A Range Of Focusing Problems..
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..
Features
- The extension tube has a M48*0.75 interior thread and a M48*0.75 exterior thread for elegantly solving spacing problems in astrophotography.
- 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.
- Male thread - M48*0.75. Female thread - M48*0.75, eliminates a range of focusing problems.
- All metal construction and anodizing aluminium process, resistant for long time use.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.20 x 10.00 x 5.30 Inches
See On Amazon #8
Alstar 2-Inch Telescope Eyepiece Extension Tube Adapter - Optical Length 80mm - with Standand 2-Inch Filter Threads
Asin: B074J1JNWZ | Model: SKU_AM_ETA280A | PartNumber: SKU_AM_ETA280A | Ean: 6970019291840
Machined Of High Quality Aluminum And Anodized Black, Resistant For Long Time Use..
With This Simple And Useful Device, You Can Extend The Focal Length Of Your Telescope 80Mm 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..
Features Two Locking Thumbscrews To Secure Any Inserted Astronomy Accessory, With A Brass Compression Insh To Prevent The Marring Of Your Telescope Accessories..
Features
- Extension tube provides extra focuser "back travel" often needed for short-range terrestrial viewing through a telescope, or for astrophotographic applications.
- 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, resistant for long time use.
- 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 80mm 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.
- See more on Amazon...
Brand: Alstar | Manufacturer: Alstar
Dimensions: 5.10 x 2.70 x 2.70 inches | Weight: 0.45 pounds
See On Amazon #9
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 #10
Alstar 2" 2.5X Barlow Lens - Allows The Use of Both 2" and 1.25" Eyepieces
Asin: B074CRWQ61 | Model: SKU_AM_BL2X4A | PartNumber: SKU_AM_BL2X4A | Ean: 6970019299693
A 2" To 1.25" Adapter Is Included. Allows The Use Of Both 2" And 1.25" Eyepieces..
Brass Compression Rings Securely Hold Eyepieces Without Marring The Eyepiece Barrel's Finish..
Hard-Anodized Aluminum Barrel Is Threaded To Accept 2" Filters..
Rubber Grip For Easy Handling In Cold Weather Or With Gloves..
Features
- The barlow increases the magnification of any 2" or 1.25" eyepiece by two and a half times.
- Rubber grip for easy handling in cold weather or with gloves.
- A 2 to 1.25 adapter is included. Allows the use of both 2 and 1.25 eyepieces.
- Hard-anodized aluminum barrel is threaded to accept 2 filters.
- Brass compression rings securely hold eyepieces without marring the eyepiece barrel's finish.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 3.10 x 4.40 x 2.60 Inches | Weight: 0.35 Pounds
See On Amazon #11
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 #12
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 #13
Alstar Alignment 1.25" Next Generation Laser Collimator 2" Adaptor for Newtonian Telescopes
Asin: B078JJ8SL1 | Model: 10252 | PartNumber: 10252 | 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 #14
Alstar 2" Multiple 5-Position Filter Wheel for Telescope - Allowing You to Image Without Any Reflections or Stray Light
Asin: B074DSDXKJ | Model: SKU_AM_FW2M5A | PartNumber: SKU_AM_FW2M5A | Ean: 6970019299945
The Filter Wheel Interior Is Absolutely Light-Tight - Allowing You To Image Without Any Reflections Or Stray Light. It's Construction Is Impermeable To Light And Thus Ensures Reflection-Free Astrophotography..
Please Note: Your Focuser Will Require 20Mm Of Inward Focusing Distance From The Normal Focus Position To Compensate For The Thickness Of The Filter Wheel..
This 2" Filter Wheel Lets You Use Up To 5 Different Filters And Change Them Within Just A Few Seconds, You Can Also Leave Your Filters Mounted In The Filter Wheel, As They Are Optimally Protected From Dust And Damage There..
Filter Positions Indicated By The Numbers 1-5, Takes Any Standard 2" Filter. It's Very Sturdy Aluminum Housing Makes It Also Suitable For Heavy Cameras, Accessory-Side T-2 And M48 Threads..
Features
- The telescope side of the filter wheel comes supplied with a 2" adapter, allowing you to quickly and easily attach it to your focuser. The very short design also permits the use of devices with short back focus such as Newton or Dobson telescopes.
- Filter positions indicated by the numbers 1-5, takes any standard 2 filter. It's very sturdy aluminum housing makes it also suitable for heavy cameras, accessory-side T-2 and M48 threads.
- The filter wheel interior is absolutely light-tight - allowing you to image without any reflections or stray light. It's construction is impermeable to light and thus ensures reflection-free astrophotography.
- This 2 filter wheel lets you use up to 5 different filters and change them within just a few seconds, you can also leave your filters mounted in the filter wheel, as they are optimally protected from dust and damage there.
- Please note: your focuser will require 20mm of inward focusing distance from the normal focus position to compensate for the thickness of the filter wheel.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 7.40 x 7.60 x 4.10 inches | Weight: 1.30 pounds
See On Amazon #15
Alstar Astronomical 2"/M48-extension Tube Kit for Cameras and eyepieces - Length 5mm 10mm 20mm 30mm - M48x0.75 on Both Sides
Asin: B074J7HBHJ | Model: SKU_AM_M48EXT5123A | PartNumber: SKU_AM_M48EXT5123A | Ean: 6970019292045
【Aluminium Alloy Material】High-Quality All-Metal Construction And Anodizing Aluminium Process, Resistant 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, resistant 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.
- See more on Amazon...
Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.20 x 10.00 x 5.30 inches | Weight: 0.16 pounds
See On Amazon #16
Alstar Astronomical 2"/M48-extension Tube Kit for Cameras and eyepieces - Length 5mm 8mm 10mm 20mm 30mm - M48x0.75 on Both Sides
Asin: B074J5QCHY | Model: SKU_AM_M48EXT58123A | PartNumber: SKU_AM_M48EXT58123A | Ean: 6970019292052
Use This Extension Tube For Getting The Correct Image Scale Or The Exact Spacing Required For Reducers Or Field Flatteners..
All Metal Construction And Anodizing Aluminium Process, Resistant For Long Time Use..
Male Thread - M48*0.75. Female Thread - M48*0.75, Eliminates A Range Of Focusing Problems..
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..
Features
- The extension tube has a M48*0.75 interior thread and a M48*0.75 exterior thread for elegantly solving spacing problems in astrophotography.
- 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.
- Male thread - M48*0.75. Female thread - M48*0.75, eliminates a range of focusing problems.
- All metal construction and anodizing aluminium process, resistant for long time use.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.20 x 10.00 x 5.30 inches | Weight: 0.05 pounds
See On Amazon #17
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 #18
Alstar 2" Variable Universal Camera Adapter - Compatible for Both Reflector and Refractor telescopes with 1.25" Eyepiece Holders
Asin: B074FYXWNV | Model: SKU_AM_VUCA2A | PartNumber: SKU_AM_VUCA2A | Ean: 6970019291451
This Easy To Use 2" Variable Universal Camera Adapter Is Designed To Attach Both Camera Body And Reflector Together..
Compatible For Both Reflector And Refractor Telescopes With 2" Eyepiece Holders..
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..
Features
- The 2" Variable Universal 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.
- This easy to use 2 Variable Universal 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.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.60 x 1.70 x 3.10 inches | Weight: 0.40 Pounds
See On Amazon #19
Alstar 1.25" / 2" Twist-Lock Adapter - Firmly and Gently Holds and centres Your eyepieces
Asin: B077GQCXJC | Model: SKU_AM_ZA2T1TENA | PartNumber: SKU_AM_ZA2T1TENA | Ean: 6971336221381
This Is A Very High Quality Anodized Aluminum Adapter, Self-Centring 2" To 1.25" Adapter With 2" Thread..
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..
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..
Features
- An affordable way to increase the number of eyepieces to use with your 2" focuser-equipped telescope.
- 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, 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.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 1.80 x 2.70 x 2.40 inches | Weight: 0.23 pounds
See On Amazon #20
Alstar 2" Moon/Skyglow Filter
Asin: B0778B9NFR | Model: SKU_AM_ZF2MSA | PartNumber: SKU_AM_ZF2MSA | Ean: 6971336220612
It Enhances Contrast Of All Reddish Details And So This Filter Can Also Be Used For Planetary Viewing, As Well As Of Blue Details..
The Moon & Skyglow Is A Multi-Bandpass Filter Transmitting A High Percentage Of Light In The Visual Spectrum..
The Filter Is Made With A Special Neodymium Glass That Effectively Filters Out Selective Wavelengths Of Low-Pressure Sodium And Other Man-Made Sources Typically Used In Street Lighting..
Very High Light Transmission Exceeding Ninety Five (95) Percent Of That Light Some The Portions Of The Spectrum - While Blocking Unwanted Skyglow And Many Street Light Emissions..
Features
- By rejecting most other light this will cause certain objects to appear more clearly against a blacker background of space.
- Very high light transmission exceeding ninety five (95) percent of that light some the portions of the spectrum - while blocking unwanted skyglow and many street light emissions.
- It enhances contrast of all reddish details and so this filter can also be used for planetary viewing, as well as of blue details.
- The filter is made with a special Neodymium glass that effectively filters out selective wavelengths of low-pressure sodium and other man-made sources typically used in street lighting.
- The Moon & Skyglow is a multi-bandpass filter transmitting a high percentage of light in the visual spectrum.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 0.60 x 2.80 x 2.70 inches
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