Collection

Pegasus Astro Pegasus Astro Pocket Powerbox Advance Gen2 - PPBADV

The latest addition to the Powerbox family is the Pocket Powerbox Advance. It offers 12 amps of total distributed current...more than the Pocket Powerbox (10A).

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Pegasus Astro Pocket Powerbox Advance Gen2 - PPBADV

$348.30

Pegasus Astro Pegasus Astro FocusCube Zero (for C11 SCT) - For Celestron 11" SCTs and Edge Telescopes OVERSTOCK CLEARANCE!

Focus fast, reliable and accurate your Celestron SCT telescope by using the “FocusCube Zero“.

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Pegasus Astro FocusCube Zero (for C11 SCT) - For Celestron 11" SCTs and Edge Telescopes OVERSTOCK CLEARANCE!

$225.00

$Celestron Celestron StarSense Explorer™ LT 80 Smartphone App-Enabled Refractor Telescope$

Unleash the power of your smartphone to take you on a guided tour of the night sky—no telescope experience required.

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Celestron StarSense Explorer™ LT 80 Smartphone App-Enabled Refractor Telescope

$249.95

Tamron Tamron SP 70-200mm f2.8 Di VC USD G2 w/hood (Specify Mount)

Expand your image of fast telephoto shooting

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Tamron SP 70-200mm f2.8 Di VC USD G2 w/hood (Specify Mount)

$1,299.99

Great condition Mounting Plate (Arca-swiss Type)!

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Mounting Plate (Arca-swiss Type)

$15.00

ZWO ZWO ASI533MC Pro USB3 Cooled Color Camera (3.76 microns)- ASI533MC-P

The ZWO ASI533MC Pro camera is a cooled color camera that comes with an impressive full well of 50,000e and a large sensor with 9.05MP.

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ZWO ASI533MC Pro USB3 Cooled Color Camera (3.76 microns)- ASI533MC-P

$799.00

ZWO ZWO ASI6200 Pro USB3.0 Cooled Color Camera (2025 Version) - ASI6200MC-P25

The ZWO ASI6200MC Pro color camera uses its full frame design and many features to create high quality images.

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ZWO ASI6200 Pro USB3.0 Cooled Color Camera (2025 Version) - ASI6200MC-P25

$3,999.00

ZWO ZWO ASI6200 Pro USB3.0 Cooled Monochrome Camera - ASI6200MM-P

This ZWO ASI6200MM Pro monochrome camera uses its full frame design and many features to create high quality images for astrophotographers.

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ZWO ASI6200 Pro USB3.0 Cooled Monochrome Camera - ASI6200MM-P

$3,999.00

Bower 6-in-1 Professional Multipod

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Bower 6-in-1 Professional Multipod

$34.99

PrimaLuceLab PrimaLuceLab Adapter ESATTO 3" for GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches

If you are searching for the most precise motorized focuser to use the GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches (both aluminum and cabron tubes) for astrophotography, this adapter allows you to connect ESATTO 3" to this telescope.

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PrimaLuceLab Adapter ESATTO 3" for GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches

$150.00

Simple explanations of complex ideas FOR YOUR FUTURE GENIUS!

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Robotics for Babies

$9.99

iOptron iOptron Photron 14 inch Truss Tube RC Telescope (RC14-Truss)

The Photon™ line of Ritchey-Cretien astrograph telescope has been expanded with the addition of four new truss tube models (10,12,14 and 16 inch).

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iOptron Photron 14 inch Truss Tube RC Telescope (RC14-Truss)

$6,699.00

Baader Planetarium Baader Multi-Purpose Quick Release Finder Bracket & Base - For Finders Up To 72mm

Fits all 60 mm Finder Scopes

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Baader Multi-Purpose Quick Release Finder Bracket & Base - For Finders Up To 72mm

$134.00

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

Pentax SMC XW 10mm (1.25") Eyepiece

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Pentax SMC XW 10mm (1.25") Eyepiece

$299.00

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

DayStar Filters Solar Scout 60mm f/15.5 H-alpha Achro Solar Telescope (available in Chromosphere or Prominence Models)

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DayStar Filters Solar Scout 60mm f/15.5 H-alpha Achro Solar Telescope (available in Chromosphere or Prominence Models)

$1,595.00

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)

$2,199.00

Explore Scientific Explore Scientific Adapter for FFFR507X-00 to 2.5" Hex Focuser - 510366

This adapter allows you to attach the 3-inch 0.7X Field Flattener Focal Reducer (FFFR507X-00) on optical tubes with a 2-inch focuser. This adapter also allows you to adapt the 3-inch Diagonal to a 2-inch focuser draw tube. The adapter is threaded to accep

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Explore Scientific Adapter for FFFR507X-00 to 2.5" Hex Focuser - 510366

$89.99

Explore Scientific Explore FirstLight 130mm Newtonian with EQ3 Mount - FL-N130600EQ3

Generous 130mm aperture showcases galaxies, nebulae and star clusters with its impressive light-gathering capability.

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Explore FirstLight 130mm Newtonian with EQ3 Mount - FL-N130600EQ3

$349.99

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

$63.95

Celestron Celestron Travel Scope 80 with Backpack

The Travel Scope 80 is a refractor telescope perfect for terrestrial and celestial viewing on the go.

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Celestron Travel Scope 80 with Backpack

$149.95

ZWO 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

Explore Scientific Explore Scientific FirstLight EXOS Nano Mount - FL-EXOSNANOT1-00

The EXOS Nano is a light-duty German Equatorial mount and tripod designed to quickly and easily accept small scopes

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Explore Scientific FirstLight EXOS Nano Mount - FL-EXOSNANOT1-00

$129.99