Collection

Baader Planetarium Baader Semi APO Filter

Two filters made into one for maximum brightness

$106.00

Baader Planetarium Baader Single Polarizing Filter

Screws into 1.25" or 2" eyepieces/threads. Useful in Lunar and Solar observations to limit brightness and increase contrast.

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Baader Single Polarizing Filter

$61.00

Baader Planetarium Baader Fringe Killer Color Correction-Filter

Baader Planetarium has taken minus violet filtration to a new level.

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Baader Fringe Killer Color Correction-Filter

$108.00

Polaroid Flip Instant Camera Color Starter Set (Black, 8 Exposures)

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Polaroid Flip Instant Camera Color Starter Set (Black, 8 Exposures)

$269.95

Sigma Sigma 300-600mm F4 DG OS SPORTS (Specify Mount)(Pre-order)

Uncompromising Reach. Prime-Like Performance.

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Sigma 300-600mm F4 DG OS SPORTS (Specify Mount)(Pre-order)

$6,599.00

ZWO’s ASI2600MM Air is a wireless monochrome astro camera with a 26MP Sony IMX571 sensor, TEC cooling, ultra-low noise, 16-bit ADC, and onboard computing—ideal for high-detail mono imaging without a PC.

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ZWO ASI2600MM Air

$2,499.00

Tele Vue Tele vue 2" Extension Tube - 2.5" Long (Olde Style without compression ring) (Pre-owned)

Restores focus depth when using larger eyepieces or Barlow lenses

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Tele vue 2" Extension Tube - 2.5" Long (Olde Style without compression ring) (Pre-owned)

$29.99

Celestron 6x30 Finderscope (White) with bracket (Pre-owned)

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Celestron 6x30 Finderscope (White) with bracket (Pre-owned)

$29.99

Canon LC-E5 Compact Battery Charger for LP-E5 Battery Pack

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Canon LC-E5 Compact Battery Charger for LP-E5 Battery Pack

$59.95

Celestron Celestron Computer Hand Control Bracket with Web Strap to fit many Telescopes

Compatible with a wide range of Celestron computerized telescopes, the bracket uses a simple web strap system to attach quickly to your telescope tripod leg or mount arm.

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Celestron Computer Hand Control Bracket with Web Strap to fit many Telescopes

$19.99

Star Finder and Identifier No 2102-D (Pre-owned)

Vintage functionality with timeless accuracy!

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Star Finder and Identifier No 2102-D (Pre-owned)

$60.00

58mm 82B Photographic Filter

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58mm 82B Photographic Filter

$29.50

Pegasus Astro Pegasus Astro Temperature Sensor for DMFC, Prodigy, and FocusCube3 (Jack 3.5mm)

This digital temperature sensor is an essential tool for astrophotographers seeking precise focus control

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Pegasus Astro Temperature Sensor for DMFC, Prodigy, and FocusCube3 (Jack 3.5mm)

$13.26

Hasselblad a16 back

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Hasselblad a16 back

$0.00

The Pegasus Astro DewMaster 2 is a high-precision, five-channel dew heater controller engineered for modern astrophotography.

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Pegasus Astro DewMaster 2

$259.90

Pegasus Astro Pegasus Astro Adapter M74 Female to M68 Male (For SW Esprit 100)

This adapter seamlessly connects M74 threaded accessories to M68 threads, ensuring compatibility and versatility in your equipment.

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Pegasus Astro Adapter M74 Female to M68 Male (For SW Esprit 100)

$49.84

Pegasus Astro Pegasus Astro Adapter M68 Male to M63 Female (For Ricardi M63 Reducer & WO Reducers With M63 Thread)

Pegasus Astro Adapter M68 Male to M63 Female has a slim profile that minimizes additional backfocus, making it a valuable addition to any imaging setup.

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Pegasus Astro Adapter M68 Male to M63 Female (For Ricardi M63 Reducer & WO Reducers With M63 Thread)

$30.80

Pegasus Astro Pegasus Astro Adapter M68 Male to M54 Male (20mm Length) - Connects Falcon2 Rotator with OAG

Crafted from durable, black anodized aluminum, this adapter ensures a secure and stable connection between your equipment, maintaining the integrity of your optical setup.

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Pegasus Astro Adapter M68 Male to M54 Male (20mm Length) - Connects Falcon2 Rotator with OAG

$39.20

The Binder & Graun Star Finder Planisphere

This Star Finder was specifically designed to be clear and easy to use for beginning stargazers.

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The Binder & Graun Star Finder Planisphere

$6.50

SeeStar S50 2-inch Filter Adapter with Light Pollution Filter

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ZWO SeeStar S50 2-inch Filter Adapter with Light Pollution Filter

$49.99

The Millennial Project: Colonizing the Galaxy in Eight Easy Steps by Marshall T. Savage

An ambitious and visionary blueprint for humanity's expansion into space. This work combines scientific insight with imaginative foresight, outlining a comprehensive plan to transform humanity into a spacefaring civilization.

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The Millennial Project: Colonizing the Galaxy in Eight Easy Steps by Marshall T. Savage

$25.00

Los Alamos and the development of the Atomic Bomb by Robert W. Seidel (Pre-Owned)

Pre Owned Book Los Alamos and the development of the Atomic Bomb by Robert W. Seidel in Mint Condition

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Los Alamos and the development of the Atomic Bomb by Robert W. Seidel (Pre-Owned)

$12.00

Sigma Sigma 105mm F2.8D Macro Lens for Canon EOS (Pre-Owned)

1:1 reproduction for true-to-life macro photography

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Sigma 105mm F2.8D Macro Lens for Canon EOS (Pre-Owned)

$199.99

Smithsonian Smithsonian 3-D LED Solar System

This Smithsonian Glowing 3-D Solar System Kit lets you turn your child's room into a planetarium!

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Smithsonian 3-D LED Solar System

$49.99