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
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.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
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Alstar 1.25" Narrowband H-Beta Filter
Asin: B07789GKYY | Model: SKU_AM_HF1A | PartNumber: SKU_AM_HF1A | Ean: 6971336220445
The High Optical Quality Of The Alstar Filters Guarantees No Loss In Sharpness Or Contrast..
Filter With Metal Mount 1.25" Filter Threads On Both Sides..
Executes With A Transmission Of Over 90% And Completely Rejects Light Pollution..
Have Extremely High Transmissions, While Completely Rejecting Light Pollution As Well As The Important Blocking Of Longer Wavelengths..
Features
- Substrate is fine-optically polished plane parallel to deliver a smooth and accurate 1/4 wavefront over the entire surface.
- Have extremely high transmissions, while completely rejecting light pollution as well as the important blocking of longer wavelengths.
- The high optical quality of the Alstar filters guarantees no loss in sharpness or contrast.
- Executes with a transmission of over 90% and completely rejects light pollution.
- Filter with metal mount 1.25 filter threads on both sides.
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Brand: A ALSTAR | Manufacturer: Alstar
Dimensions: 0.60 x 2.80 x 2.70 Inches
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