Products

Prepared Slides For Hours and Hours of Enjoyment and Discovery 1" x 3" (25mm x 76mm) Glass Slides Packed in a Wooden Case Listing of each of the S...

A wide assortment of specimen slides covering insect parts, plant parts, animal parts, etc.Features Prepared Slides For Hours and Hours of Enjoymen...

CNC machined primary mirror mask made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 150PDS/P/Quattro The precisely machi...

CNC machined primary mirror mask made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 200PDS/Quattro The precisely machine...

CNC machined primary mirror mask made of aluminum (EN AW-6061), black matte anodized, suitable for Sky-Watcher 250PDS/Quattro The precisely machine...

  CNC machined primary mirror mask made of aluminum (EN AW-6061), black matt anodized, suitable for 8" TS-Optics/GSO Newtons The precisely machine...

It's the 2020 edition of Professor Noggin with all new photos! Kids will enjoy transferring their energy to learning about Energy, Motion, and Gas...

PLAY & LEARN: Professor Noggin’s series of educational card games encourages kids to learn interesting facts about their favorite subjects. F...

The QHY183M and QHY183C use a 1-inch SONY back-illuminated IMX183 sensor with 20.48 million pixels at 2.4um. This sensor has high sensitivity with ...

The QHY183M and QHY183C use a 1-inch SONY back-illuminated IMX183 sensor with 20.48 million pixels at 2.4um. This sensor has high sensitivity with ...

With the advantage of low readout noise and high-speed readout, CMOS technology has revolutionized astronomical imaging.  A monochrome, back-illum...

36 Megapixels - 35mm Format The QHY367C is the top performing full frame camera in COLDMOS Series. The Sony Exmor IMX367 CMOS sensor is also found...

When the pixels of a guide camera becomes small and QE becomes high, you may not need a big guide scope, smaller pixels can detect the guide error...

  150mm aperture, 600mm focal length  Fast f/4 focal ratio  Parabolic borosilicate mirrors utilizing Sky-Watcher’s proprietary Radiant ™ Aluminu...

Starizona's QuickSwitch allows the use of a ZWO EAF focus motor on an SCT while maintaining the ability to manually focus.  This makes it easy to s...

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

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 Fi...

The RASA 8 Filter Holder allows the use of 2" filters on Celestron's RASA 8" telescope with a camera using M54 threads and having a 17.5mm backfocu...

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