Products

Stainless steel 3kg/6.6lbs for RST-135 mounts

Specs: Designed for use with your RST-135 Mount Stainless Steel 200mm Length 18mm Diameter

Rainbow Astro RST-135 Vixen Saddle

Features Compact and light Mount weighs only 7.2lb / 3.3kg. You do not need a separate bag for Mount. Just put it in your backpack. Equatorial / Al...

Counterweights Not Required Only 8.5kg weight Capacity 30kg (max 50kg) Strain Wave Gear (Harmonic Drive) Built-in brake (RA...

20mm adapter that connects Starizona's Filter Slider to the Stock RASA 11 adapter for ZWO Cooled cameras. Yay!

The Starizona RASA 8 Filter Holder allows you to use 2" filters with the Celestron RASA 8" telescope with cameras that are not compatible with a F...

Purchase additional filter holders to easily use multiple filters with the Starizona Filter Slider. Holds standard 2" mounted filters with 48mm thr...

By removing the original faceplate or tip-tilt adapter on the RedCat 51 you can thread this adapter directly to the scope giving you the correct th...

The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 1400 one full F-Stop faster than f/11, reducing your exposure time by half to capture the same...

The EdgeHD .7x Reducer Makes Your EdgeHD 800 One Full F-Stop Faster Than f/10, Reducing Your Exposure Time by One-Half to Capture the Same Brightn...

  The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 9.25" one full F-Stop faster than f/10, reducing your exposure time by half to capture the s...

  ED Objective Lens: Minimizes chromatic aberration, accurate color reproduction, increased resolution and contrast XLT Coatings (Fully Multi-Co...

Named for the Latin word for butterfly, PENTAX Papilio 6.5x21 binoculars are the perfect choice for insect observation in the field and in museums ...

Named for the Latin word for butterfly, PENTAX Papilio 8.5x21 binoculars are the perfect choice for insect observation in the field and in museums ...

One Tenth the size and weight of the competition's "reflex" sight, makes aiming your telescope easy with its wide-open right-side-up view. Projects...

Rock collecting is simple and fun with this children’s book that includes an introduction to geology, an identification guide to rocks and minerals...

Author: O. Richard NortonPaperback: 444 pagesThis popular nontechnical introduction to meteorites, asteroids, comets, and impact craters is now eve...

Explore and "color in" the amazing world of minerals and crystals... readers and rockhounds of all ages and skill levels will love this book! Learn...

Allows Celestron computerized telescopes (CPC, CGE, NexStar, Advanced Series) to be connected to a RS-232 serial port for computer control. A USB-t...

Counterweights Not Required Only 3.4kg weight ±2.5arcsec PE Capacity 13.5kg (max 18kg) Strain Wave Gear (Harmonic Drive) ...

Use this adapter to attach accessories with standard SCT female threads (such as a focal reducer) to a 2" focuser or visual back. This adapter has ...

Details: - 55mm Long - SCT Female Threads - Takes 2" eyepieces and diagonals