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Farpoint FP414T Tri-Bahtinov Focus and Collimation Mask for Meade 12" SCT
The Tri-Bahtinov Mask is an advanced version of the Bahtinov mask that allows for even more precise adjustments and can also be used as a collimation tool

Tri-Bahtinov Focus and Collimation Mask for Meade 12" SCT is an ingenious new way to easily focus
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FP414T Tri-Bahtinov Focus and Collimation Mask for Meade 12" SCT
$47.30
Farpoint FP412RT Tri-Bahtinov Focus and Collimation Mask for Celestron 11" RASA
The Tri-Bahtinov Mask is an advanced version of the Bahtinov mask that allows for even more precise adjustments and can also be used as a collimation tool

Tri-Bahtinov Focus and Collimastion Mask for Celestron 11" RASA - with Hyperstar or Fastar is an
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FP412RT Tri-Bahtinov Focus and Collimation Mask for Celestron 11" RASA
$39.60
Canon Canon 50mm f/1.2 Lens LTM L39 Leica Screw Mount with Leica M3 bayonet Mount Adapter (Pre-owned)
Focusing is smooth with this lens!
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Canon 50mm f/1.2 Lens LTM L39 Leica Screw Mount with Leica M3 bayonet Mount Adapter (Pre-owned)
$599.99
Contax Contax Carl Zeiss Sonnar 135mm f/2.8 T* MF Lens MMJ C/Y
The build quality of this lens is pretty solid!
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Contax Carl Zeiss Sonnar 135mm f/2.8 T* MF Lens MMJ C/Y
$249.99
Contax Contax Carl Zeiss Tele-Tessar 200mm f/3.5 MF lens C/Y Mount JAPAN
Carl Zeiss Tele Tessar 200mm f/3.5 is one of the classical telephoto lenses developed by Zeiss!
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Contax Carl Zeiss Tele-Tessar 200mm f/3.5 MF lens C/Y Mount JAPAN
$179.95
iOptron iOptron Polar Scope for iEQ30 & iEQ45 Mounts - 3330-IEQ
iOptron Polar Scope for iEQ30 & iEQ45 Mounts - 3330-IEQ
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iOptron Polar Scope for iEQ30 & iEQ45 Mounts - 3330-IEQ
$105.00
Avalon Avalon T-POD 130 (Black)
Made entirely from anodized aluminum with stainless steel hardware, the low weight and high stability of this tripod make him the ideal companion for travelling observers and Astro-photographers.
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Avalon T-POD 130 (Black)
$999.99
Howie Glatter Howie Glatter ORIGINAL FINE THREAD Crosshair and Circle Scope Pattern Projection Attachment (LIMITED QUANTITIES)
This is one of the last holographic disks that Howie Glatter made with the original fine thread.
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Howie Glatter ORIGINAL FINE THREAD Crosshair and Circle Scope Pattern Projection Attachment (LIMITED QUANTITIES)
$80.00
Vanguard Vanguard 8x42 Veo HD2 Binoculars
Enjoy stunning clarity and color wherever your adventures take you.
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Vanguard 8x42 Veo HD2 Binoculars
$399.99
QHYCCD QHY410C Color Camera - Photographic Version
QHY410C uses Sony’s latest back-illuminated, full frame color sensor. The IMX410 is equipped with the sensor that used in the Nikon Z6, and Sony A7III.
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QHY410C Color Camera - Photographic Version
$3,695.00
iOptron Ioptron CEM70EC mount head in hard case with iPolar
Following up on the success of the iOptron CEM60 center balance equatorial mount, we at iOptron are excited to introduce two new medium payload center balance mounts.
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Ioptron CEM70EC mount head in hard case with iPolar
$5,329.00
William Optics William Optics Vixen Style Base Mount - (Specify Declination)
This innovative William Optics Vixen Base is an upgrade for the iOptron SkyGuider Pro Mount.
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William Optics Vixen Style Base Mount - (Specify Declination)
$218.00
ZWO ZWO M48-M48 Extender (16.5mm)
The ZWO M48-M48 16.5mm Adapter is useful to obtain a precise spacing when using a focal reducer or corrector that needs a certain chip-reducer spacing. It can also be used as a M48-M48 spacer.
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ZWO M48-M48 Extender (16.5mm)
$23.00
Knox Crusader 50 x 50 Lenticular Screen (Pre-owned)
Knox Crusader 50 x 50 Lenticular Screen (Pre-owned)
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Knox Crusader 50 x 50 Lenticular Screen (Pre-owned)
$99.95
Explore Scientific Explore Scientific Two-Room Pop-Up Observatory Tent - ES-2ROBV
An Explore Scientific Two-Room Pop-Up Observatory Tent Can Transform Your Astronomy!
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Explore Scientific Two-Room Pop-Up Observatory Tent - ES-2ROBV
$279.99
Celestron Celestron MC102-B00-26 Power board for the NexStar 4/5Se series only
Celestron MC102-B00-26 Power board for the NexStar 4/5Se series only
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Celestron MC102-B00-26 Power board for the NexStar 4/5Se series only
$19.95
Celestron Celestron Tripod Leg Clamp " Black" for SLT & GT Series (Single)
Celestron Tripod Leg Clamp " Black" for SLT & GT Series (Single)
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Celestron Tripod Leg Clamp " Black" for SLT & GT Series (Single)
$29.99
Celestron Celestron NXW431 - Motor Board for CPC Series Telescopes
Right: New Left: Old
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Celestron NXW431 - Motor Board for CPC Series Telescopes
$159.95
Celestron Celestron Clutch knobs compatible only for the CGEM series
Celestron Clutch knobs compatible only for the CGEM series
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Celestron Clutch knobs compatible only for the CGEM series
$29.95
Celestron Celestron CGEM MC Serial Board for CGEM Mounts Only - NXW439
Celestron CGEM MC Serial Board for CGEM Mounts Only - NXW439
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Celestron CGEM MC Serial Board for CGEM Mounts Only - NXW439
$314.00
Celestron Binocular Eyepiece Cover 20x80 SkyMaster 71018
Celestron Binocular Eyepiece Cover 20x80 SkyMaster 71018
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Celestron Binocular Eyepiece Cover 20x80 SkyMaster 71018
$19.95
Celestron Celestron Right Ascension Housing for Advanced VX-51702-8
Celestron Right Ascension Housing for Advanced VX-51702-8
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Celestron Right Ascension Housing for Advanced VX-51702-8
$19.99
Tamron Tamron SP 150-600mm f5-6.3 Di VC USD G2 w/hood (Specify Mount)
Spanning a versatile and long-reaching focal length range, the Canon EF-mount SP 150-600mm f/5-6.3 Di VC USD G2 from Tamron is a 4x zoom covering telephoto to super telephoto perspectives
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Tamron SP 150-600mm f5-6.3 Di VC USD G2 w/hood (Specify Mount)
$1,399.99
Askar Askar FRA400 72mm f/5.6 Quintuplet Petzval Flat-Field Astrograph # FRA400
The FRA, which stands for “FLATFIELD REFRACTIVE ASTROGRAPH”, is a refractive astrograph designed
for built-in flat field correction.
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Askar FRA400 72mm f/5.6 Quintuplet Petzval Flat-Field Astrograph # FRA400
$1,199.00