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Airy Disk 0.8x Full-Frame Reducer / Flattener for AP204
Airy Disk$650.000.8x Field Flattener / Reducer for the 204mm 3 Glass Elements 55mm Back Focus, adjustable to 88mm Connects to our focuser by M63x1 Camera side: M48...
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Airy Disk 0.92x Reducer / Flattener 85mm - 140mm
Airy Disk$250.000.92x Field Flattener / Reducer for all APOs 2 Glass Elements ED 55mm Back Focus, adjustable T2 AP85 to 469mm f/5.5 AP95 to 529mm f/5.5 AP106 to 64...
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Airy Disk 1x Field Flattener for 60mm
Airy Disk$160.001x-Flat Field for sharper stars all to way to the edge. Specifically made for the 60mm APO. Screws on to the M63x1-Thread. The spotdiagrams show ...
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Airy Disk APO 106mm f/6.6 Triplet ED FCD-100 Apochromatic Refractor
Airy Disk$1,890.00The 106mm Apochromat telescope is a dream come true for both astrophotography enthusiasts and visual observers who are seeking the utmost in cont...
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Airy Disk APO 140mm f/6.5 Triplet ED FCD-100 Apochromatic Refractor
Airy Disk$3,990.00The perfect telescope for the small home observatory The Airy Disk 140mm Apochromat represents a top-tier telescope designed to meet the needs...
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Airy Disk APO 152mm f/5 Doublet ED Apochromatic Refractor
Airy Disk$3,290.00Glass used: HOYA FCD1, CDGMColor: WhiteTube Material: Aluminum alloyAperture: 152mmFocal ratio: f/5Focal length: 750mmCoating: Full sur...
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Airy Disk APO 204mm f/7 Triplet ED FK61 Apochromatic Refractor
Airy Disk$14,800.00Airy Disk's 8" triplet APO is a great telescope for observatories. It provides high-contrast imaging and guarantees genuine observing pleasu...
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Airy Disk APO 60mm f/5.5 ED Apochromatic Refractor (White)
Airy Disk$499.00Optional 1x field-flattener for imaging with sensors up to APS-C format. Glass used: HOYA FCD1, CDGMColor: WhiteTube Material: Aluminum alloyApe...
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Airy Disk APO 85mm f/6 Triplet ED FCD-100 Apochromatic Refractor
Airy Disk$999.00Portable 85mm Apochromat with ED lens made of Japanese glass Enjoy crystal-clear observations and capture stunning astro photographs with the n...
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Airy Disk APO 96mm f/6 Doublet ED Apochromatic Refractor
Airy Disk$849.00A compact 96mm apochromat for powerful images A compact apochromat for powerful images This APO with a 96mm aperture offers This APO with a 9...
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Airy Disk APO 96mm f/6 Triplet ED FCD-100 Apochromatic Refractor
Airy Disk$1,190.00A compact 96mm apochromat for powerful images This APO telescope, boasting a 96mm aperture, presents a delightful combination of outstanding opt...
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ALUMINUM DEW SHIELD WITH COVER CAP - 11"
Celestron$259.95Fits 11” Schmidt-Cassegrain, EdgeHD, and RASA telescope tubes Helps prevent dew formation on the Schmidt corrector lens Prevents off-axis glare f...
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ALUMINUM DEW SHIELD WITH COVER CAP - 6"
Celestron$114.95Helps prevent dew formation on the Schmidt corrector lens Prevents off-axis glare from entering the optical system Rigid body with a velvet-lined...
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ALUMINUM DEW SHIELD WITH COVER CAP - 8"
Celestron$179.95Fits 8” Schmidt-Cassegrain, EdgeHD, and RASA telescope tubes Helps prevent dew formation on the Schmidt corrector lens Prevents off-axis glare fr...
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ALUMINUM DEW SHIELD WITH COVER CAP - 9.25"
Celestron$209.95The Celestron Aluminum Dew Shield with Cover Cap is an essential accessory that protects your telescope tube in the field. The dew shield reduces r...
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Antlia 2.5nm Narrowband Oxygen III (OIII) Ultra Imaging Filter - 2" Mounted
Antlia$649.00The Antlia SHO 2.5nm Ultra series filters are made with quartz glass and undergo precisely controlled coating processes to ensure optimal per...
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Antlia 3nm Narrowband H-alpha (Ha) Pro Filter - 50mm Unmounted
Antlia$539.00Antlia H-alpha Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro n...
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Antlia 3nm Narrowband H-alpha - 2" Mounted
Antlia$434.50Antlia H-alpha Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro n...
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Antlia 3nm Narrowband Oxygen III - 2" Mounted
Antlia$434.50Antlia OIII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nmbandpass. As the bandwidth becomes narrower, the 3nm Pro narr...
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Antlia 3nm Narrowband Sulfur II - 2" Mounted
Antlia$434.50Antlia SII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narr...
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Antlia 4.5nm Narrowband H-alpha (Ha) EDGE Filter - 2'' Mounted
Antlia$319.00Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on u...
View full details$319.00In Stock -
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Antlia 4.5nm Narrowband H-Alpha EDGE Filter - 50mm Unmounted
Antlia$385.00Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on u...
View full details$385.00In Stock -
In Stock
Antlia 4.5nm Narrowband OIII EDGE Filter - 50mm Unmounted
Antlia$385.00Antlia OIII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwa...
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Antlia 4.5nm Narrowband Oxygen III (OIII) EDGE Filter - 2'' Mounted
Antlia$319.00Antlia OIII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwa...
View full details$319.00In Stock -
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Antlia 4.5nm Narrowband Sulfur II (SII) EDGE Filter - 2'' Mounted
Antlia$319.00Antlia SII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwan...
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Antlia ALP-T Dual Narrowband 3.5nm SII & H-b Filter for f/4 & Slower Telescopes - 2" Mounted
Antlia$396.00The ALP-T dual band 3.5nm SII&Hb filter is a dual narrowband filter, which lets the deep red Sulfur-II 672.4nm and the blue Hydrogen-Beta 48...
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Antlia ALP-T Dualband 3nm Ha & OIII Filter for f/4 & Slower Telescopes - 2" Mounted
Antlia$429.00The Antlia ALP-T Dualband 3nm Ha&OIII Filter is a dual narrowband filter, which lets the red H-alpha (656.3nm) and the blue-green OIII (...
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Antlia ALP-T Dualband 5nm Ha & OIII Filter - 2" Mounted
Antlia$418.00This 2" mounted APT-T dual band 5nm Ha & OIII filter is optimized to work with imaging systems slower than f/4. For faster optics from f/2.2 ...
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Antlia ALP-T Dualband 5nm Ha & OIII Highspeed Filter - 2" Mounted
Antlia$418.00ALP-T Dual Band 5nm Ha & OIII Highspeed Filters # ALP-T-2-HS are further optimized to work with high-speed imaging systems by shifting slig...
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Antlia LRGB-V Pro Series Filters - 2" Mounted (M48)
Antlia$517.00AntliaThe Antlia LRGB-V Pro series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF/KAI...
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Antlia Quadband Anti-Light Pollution Filter - 2" Mounted
Antlia$217.00The Antlia Quad Band Anti-Light Pollution Filter is a light suppression filter for color and monochrome cameras. It is able to shoot most deep sky...
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Antlia SHO (S-II, H-a & O-III) Narrowband 2.5nm Ultra Filter Set - 2" Mounted
Antlia$1,947.00Antlia H-a, SII and OIII 2.5nm Ultra Filter - Extra Narrowband filters 2" mounted The Antlia SHO 2.5nm Ultra series filters are made with quart...
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Antlia SHO (S-II, H-a & O-III) Narrowband 3nm Pro Imaging Filter Set of 3 Filters- 2" Mounted
Antlia$1,303.50Antlia 3nm SII 671.6 - 2" Mounted Antlia 3nm Ha 656.3nm - 2" Mounted Antlia 3nm OIII 500.7nm - 2" Mounted Application and Performance: High...
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Antlia Triband RGB Ultra Filter - 2" Mounted
Antlia$196.90The Antlia. Triband RGB Ultra Filter is designed for light pollution suppression for OSC and Mono cameras. The spectral design selected the most su...
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Antlia V-Pro Series LRGB Filter Set - 50mm Unmounted
Antlia$660.00The Antlia LRGB-V Pro series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF/KAI senso...
View full details$660.00 -
In Stock
Antlia V-Series L Filter - 1.25"
Antlia$82.50The Antlia V-Series Luminance filter is available separately for use as a high-quality UV/IR filter.
$82.50In Stock -
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Antlia V-Series L Filter - 2"
Antlia$117.50The Antlia V-Series Luminance filter is available separately for use as a high-quality UV/IR filter. Highlight of LRGB-V Pro series set 1. Premium...
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Apex ED Esprit 120/150 Threaded Extension
starizona$49.95The SkyWatcher Esprit 120 and 150 require the Starizona ApexED 0.65x reducer to be placed farther back from the optical tube and when used with our...
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Apex ED Threaded Focuser Adapter
Starizonafrom $49.95The ApexEd Threaded Focuser Adapter works on a verity of focuser options. You can pick between M42 or M48 male camera facing threads. Each Threaded...
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APM-Riccardi Universal Apo Flattener 1.0x – Model 2
APM$495.00APM Riccardi Universal APO Flattener 1.0x- Model 2 for APO Telescopes Our new, universal flattener for APO’s was calculated with the famous optical...
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Arizona Birds - An Introduction to Familiar Species
Waterford Press$5.95The Pocket Naturalist series introduces novices to common plants and animals and natural phenomena. Each pocket-sized folding guide highlights up t...
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Arizona Butterflies & Pollinators: A Folding Pocket Guide to Familiar Species (on) (Nature Observation North America)
Waterford Press$7.95Pollinators in Arizona include bats, bees, hummingbirds, butterflies, moths, wasps, flies, and beetles. These beneficial species are both beautiful...
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Arizona Recreation Map
Benchmark Maps$7.95The Arizona Recreation Map is a folded map version of the Recreation Guide pages within our Arizona Road & Recreation Atlas. One side provides ...
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Arizona Road and Recreation Atlas Book
Benchmark Maps$26.9512th edition, 2021. ISBN: 9781734315042 The Grand Canyon State abounds in natural beauty and outdoor recreation possibilities. Completely reworked ...
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Arizona Rocks & Minerals: A Field Guide to the Grand Canyon State book
Adventure Publications$14.95Get this must-have guide for Arizona, featuring full-color photographs and information to help you identify rocks and minerals. Identify and colle...
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Armor Black Cerakote Bullet Space Pen
Fisher$39.00Whether you’re in the field filling out a tag for that once-in-a-lifetime trophy or marking off your checklist of the never-ending chores that need...
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Askar 0.6x Full Frame Reducer / Flattener for 103APO Telescope
Askar$329.00The Askar 103 APO comes with three optional premium accessories, a 1.0x flattener, a 0.8x reducer, and a 0.6x reducer. Introduced here is the 0.6x ...
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Askar 0.75x Reducer for 71F Telescope
Askar$208.00Pre-order for Askar 0.75x Reducer for 71F Telescope. More information coming soon!
$208.00In Stock