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Sigma Sigma 70-200mm f/2.8 DG OS HSM Sports Lens (Specify Mount Type)
Pro-level performance and rugged reliability in a lens that’s ready for anything—no matter where the action takes you. Fast. Rugged. Built for the Action.
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Sigma 70-200mm f/2.8 DG OS HSM Sports Lens (Specify Mount Type)
$1,499.00
Sigma Sigma 60-600mm f/4.5-6.3 DG OS HSM Sports Lens (Specify Mount Type)
Whether you're photographing birds, motorsports, or distant landscapes, the Sigma 60-600mm f/4.5-6.3 DG OS HSM | Sports gives you pro-level reach and reliability in a single lens—ready for any subject, any condition.
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Sigma 60-600mm f/4.5-6.3 DG OS HSM Sports Lens (Specify Mount Type)
$1,999.00
Sigma Sigma 18-35mm F1.8 DC HSM ART (Specify Mount)
The perfect step up from your standard kit lens!
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Sigma 18-35mm F1.8 DC HSM ART (Specify Mount)
$799.00
Sigma Sigma 14mm f1.8 Art DG HSM (Specify Mount Type)
Perfect lens for astro and landscape photographers
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Sigma 14mm f1.8 Art DG HSM (Specify Mount Type)
$1,599.00
Helical Focuser 1.25” with 41mm Female Thread(Pre-owned)
Helical Focuser 1.25” with 41mm Female Thread(Pre-owned)
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Helical Focuser 1.25” with 41mm Female Thread(Pre-owned)
$99.00
Explore Scientific Explore Scientific - 2" Focuser for Achromatic Refractors
Explore Scientific - 2" Focuser for Achromatic Refractors
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Explore Scientific - 2" Focuser for Achromatic Refractors
$199.99
SCT 2 Inch Adapter (NO Brass Compression) (Pre-owned)
SCT 2 Inch Adapter (NO Brass Compression) (Pre-owned)
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SCT 2 Inch Adapter (NO Brass Compression) (Pre-owned)
$20.00
Orion Night Vision/Photographer's Shroud (54 x 36)
Orion Night Vision/Photographer's Shroud (54 x 36)
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Orion Night Vision/Photographer's Shroud (54 x 36)
$39.95
Tectron 3 Piece Collimation Tool Set
This 3-piece Tectron set consists of a 1.25" Sight Tube, 1.25" Cheshire tool, and 1.25" Autocollimator. All are in perfect shape!
Tectron 3 Piece Collimation Tool Set
$75.00
Finderscope 6x30 (Pre-owned)
Finderscope 6x30 (Pre-owned)
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Finderscope 6x30 (Pre-owned)
$25.00
Meade Meade Mount for Counterweight Bar on Older 290/295/490 series
Very good condition shows very little amount of wear and tear. Comes with three set screws and the thread has no signs of stripping or cross threading.
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Meade Mount for Counterweight Bar on Older 290/295/490 series
$20.00
Canon Canon RF 50mm f1.9 Coll. Serenar Leica SM #37193
This lens has a few cosmetic defects such as a dent in the lens cap and scratches at the base. These issues have no impact on the use of this lens. The interior optic shows signs of losing its coating but it is extremely small and was only identified unde
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Canon RF 50mm f1.9 Coll. Serenar Leica SM #37193
$195.00
Kalt Nikon Lens to C Mount Adapter
The Kalt Nikon F to C-Mount Adapter allows you to mount Nikon F-mount lenses to a C-mount camera body. When in use, automatic lens functions, such as autofocus and exposure coupling, will not be available and must be set manually.
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Kalt Nikon Lens to C Mount Adapter
$49.00
Sigma Sigma 70-300mm 4-5.6 APO DG for Sony (DISP)
Sigma 70-300mm 4-5.6 APO DG for Sony (DISP)
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Sigma 70-300mm 4-5.6 APO DG for Sony (DISP)
$179.95
CANON LENS FD 200mm 1:4 s.s.c (Pre-owned)
Introducing the Canon Lens FD 200mm 1:4 S.S.C. (Pre-owned): Unleash Your Telephoto Creativity at an Unbeatable Value!
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CANON LENS FD 200mm 1:4 s.s.c (Pre-owned)
$49.00
Meade Meade Tele-Extender (Pre-owned)
Do you want to do eyepiece projection photography of the moon with your Schmidt Cassegrain? Then this accessory may be for you. Insert your eyepiece directly into the visual back, thread the tele extender on to the Visual Back over the eyepiece and attach
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Meade Tele-Extender (Pre-owned)
$25.00
Graflex Speed Graphic 2x3 baby camera, Kodak Ektar lens
Enjoy a pristine, photographic relic from the WWII-era!
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Graflex Speed Graphic 2x3 baby camera, Kodak Ektar lens
$249.00
Celestron Celestron Basic Smartphone Adapter, 1.25”
Image celestial or terrestrial objects with this smartphone adapter
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Celestron Basic Smartphone Adapter, 1.25”
$19.95
Celestron Celestron Camera Adapter for Canon Mirrorless, RASA 8
Connect your Canon mirrorless camera to the 8” RASA with one simple solution—no other adapters required.
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Celestron Camera Adapter for Canon Mirrorless, RASA 8
$61.95
Celestron Celestron Camera Adapter for Sony Mirrorless, RASA 8
Connect your Sony mirrorless camera to the 8” RASA with one simple solution—no other adapters required.
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Celestron Camera Adapter for Sony Mirrorless, RASA 8
$61.95
Celestron Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8) (OTA Only)
Capture spectacular wide-field deep sky images in seconds with Celestron’s new portable astrograph, the 8” Rowe-Ackermann Schmidt Astrograph (RASA)
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Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8) (OTA Only)
$2,079.00
ZWO ZWO D86 Holder Ring for ASI Cooled Cameras (LIMITED QUANTITIES)
ZWO Holder Ring for ZWO ASI PRO COOLED CAMERAS with appr 86mm diameter
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ZWO D86 Holder Ring for ASI Cooled Cameras (LIMITED QUANTITIES)
$49.00
Astrozap Astrozap AZ-146 Flexible Dew Shield for Orion 190mm MAK
Orion 190 Mak-Newt Flexible Dew Shield
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Astrozap AZ-146 Flexible Dew Shield for Orion 190mm MAK
$46.04
ZWO ASI120MM Mini (mono) (3.75 microns) USB 2.0
Great guide camera, proven sensor over the years at a very affordable price.
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ZWO ASI120MM Mini (mono) (3.75 microns) USB 2.0
$199.00