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William Optics William Optics High Latitude Vixen Base Mount & Extension Bar for SkyGuider Pro - YG-IO-SG01H-RD-P
This innovative William Optics Vixen Base is an upgrade for the iOptron SkyGuider Pro.
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William Optics High Latitude Vixen Base Mount & Extension Bar for SkyGuider Pro - YG-IO-SG01H-RD-P
$288.00
$259.20
Celestron Dovetail Bar Kit, 8” Narrow (LIMITED QUANTITIES)
Fits pre-drilled holes in the front and rear cells of current Schmidt-Cassegrain and EdgeHD Optical tubes
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Celestron Dovetail Bar Kit, 8” Narrow (LIMITED QUANTITIES)
$41.95
Celestron Celestron Advanced VX 700 Maksutov Cassegrain Telescope
The 700 Maksutov-Cassegrain Advanced VX (AVX) telescope (Advanced VX 700 Mak) is a specialized instrument designed for detailed, high contrast views that sets a new standard in mid-level telescopes.
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Celestron Advanced VX 700 Maksutov Cassegrain Telescope
$2,849.00
Celestron Celestron Advanced VX 800 RASA Telescope
8” f/2.2 flat field imaging system with rare-earth glass for outstanding images free of optical defects like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor.
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Celestron Advanced VX 800 RASA Telescope
$3,299.00
Baader Planetarium Baader Planetarium 2" Clicklock Adapter 3.25" SCT Thread - CLSCL-2
Baader Clicklock Adapter designed for 3.25" thread telescope
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Baader Planetarium 2" Clicklock Adapter 3.25" SCT Thread - CLSCL-2
$133.00
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William Optics William Optics Pentax K-Mount Wide T Thread 48mm
This extremely well machined and lightweight T-Mount with a 48mm thread from William Optics is the perfect companion for your Pentax K series camera.
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William Optics Pentax K-Mount Wide T Thread 48mm
$39.00
$35.10
Baader Planetarium Baader Planetarium 15-20 mm UFC S70 Varilock Extension
15-20 mm UFC S70 Varilock Extension from Baader Planetarium
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Baader Planetarium 15-20 mm UFC S70 Varilock Extension
$128.00
Baader Planetarium Baader Planetarium UFC Straylight Flange Adapter
Baader Straylight Shield for UFC filter base
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Baader Planetarium UFC Straylight Flange Adapter
$57.00
Baader Planetarium Baader Planetarium 2" UFC FLI Camera Adapter
This adapter links FLI-ML and FLI-PL cameras with the Baader UFC filter base using mounting plate and included screws
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Baader Planetarium 2" UFC FLI Camera Adapter
$111.00
Baader Planetarium Baader Planetarium 2" UFC Filter Slider
2" UFC filter slider/container with M48 thread from Baader Planetarium
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Baader Planetarium 2" UFC Filter Slider
$55.00
Baader Planetarium Baader T2 90º Prism Diagonal Housing - 32mm Clear Aperture
One of the main features of Baader T2 diagonals is the large free aperture they offer
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Baader T2 90º Prism Diagonal Housing - 32mm Clear Aperture
$181.00
iOptron Ioptron CEM40EC Mount with iPolar, Case and Standard Tripod
The iOptron® CEM40EC mount is the next generation of center-balanced equatorial mounts.
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Ioptron CEM40EC Mount with iPolar, Case and Standard Tripod
$3,898.00
Nikon Volk 20D lens, Double Aspheric, Yellow Tinted, Perfect Condition, Made In USA.
Reduce or entirely eliminate blurriness from the image with this perfect lens!
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Volk 20D lens, Double Aspheric, Yellow Tinted, Perfect Condition, Made In USA.
$220.00
Turn Left at Orion, 5th Edition
With over 150,000 copies sold since its first publication, this is one of the most popular astronomy books of all time
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Turn Left at Orion, 5th Edition
$34.99
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Sky-Watcher Sky-Watcher AZ5 Mount with Steel Tripod
The Sky-Watcher AZ5 is an easy to use, grab-and-go telescope mount for visual astronomy and daytime terrestrial observations.
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Sky-Watcher AZ5 Mount with Steel Tripod
$465.00
$390.60
Pentax SMC XW 14mm (1.25") Eyepiece
FeaturesClear, Comfortable Viewing Assured by 70° Apparent Angle of View and 20mm Eye Relief.
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Pentax SMC XW 14mm (1.25") Eyepiece
$299.00
ADM ADM V Series Dovetail Adapter for Skywatcher AZ-GTi Mount VPA-AZGT
Convert the SkyWatcher AZ-GTi to an ADM Accessories style clamping system.
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ADM V Series Dovetail Adapter for Skywatcher AZ-GTi Mount VPA-AZGT
$69.00
SBig OAG-8300 Complete Guiding Package(Pre-Owned)
SBig OAG-8300 Complete Guiding Package(Pre-Owned)
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SBig OAG-8300 Complete Guiding Package(Pre-Owned)
$595.00
Large Plasma Ball
Your plasma ball is filled with mini lightning bolts that arc toward your fingers when you touch the surface
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Large Plasma Ball
$34.00
Artie 3000 The Coding Robot (LIMITED QUANTITIES)
You write the code and Artie 3000™ draws the lines!
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Artie 3000 The Coding Robot (LIMITED QUANTITIES)
$69.99
Coko Programmable Crocodile Robot (LIMITED QUANTITIES)
A cute programmable crocodile to help kids take their first steps in the coding universe!
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Coko Programmable Crocodile Robot (LIMITED QUANTITIES)
$79.99
AMERICAN OPTICAL CO. MODEL M603B LENSOMETER (UNTESTED-FINAL SALE-AS IS)
AO Promotional photo (~1920) for the first marketed AO Lensometer which was first sold in 1921;
the principal by which we still measure lenses today. In 1916, AO began using the Lensometer in its factory/ branches.
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AMERICAN OPTICAL CO. MODEL M603B LENSOMETER (UNTESTED-FINAL SALE-AS IS)
$150.00
Sigma Sigma 28mm f/1.4 DG HSM Art Lens (Specify Mount Type)
A favored wide-angle prime, a versatile lens with a classic broad field of view
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Sigma 28mm f/1.4 DG HSM Art Lens (Specify Mount Type)
$879.00
Celestron Celestron TrailSeeker ED 10x42 Binoculars
The 10x42 TrailSeeker ED binocular provides high-level outdoor performance—a perfect choice for avid birders, hunters, and outdoor enthusiasts.
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Celestron TrailSeeker ED 10x42 Binoculars
$409.95