Focuser Retrofit Kit for Celestron RASA 11 Optical Tube Kit enables the RASA 11 to be used with the Celestron Focus Motor for remote/hands-free as...

Celestron Focus Motor for Celestron Schmidt-Cassegrain, EdgeHD and Rowe-Ackermann Schmidt Astrograph (RASA) optical tubes Enables electronic focus...

Baader f/2 S-II High-speed narrowband Filter For use in fast optics such as Celestron RASA and Starizona Hyperstar astrographs Suited for astrogra...

Baader f/2 O-III High-speed narrowband Filter For use in fast optics such as Celestron RASA and Starizona Hyperstar astrographs Suited for astrogr...

Customer Return.Our customer return items may or may not have been used and may show light signs of use and assembly. Each item and its accessories...

Take crisp, clear widefield-images of the night-sky Baader NanoTracker is the world's smallest star tracker Easy to set up Can be used in northern...

CNC milled pillar extension to increase height of GM1000 mount Avoids risk of collision of your OTA to your tripod/pier Can be used with 10Micron ...

For mounting the Software Bisque Paramount German equatorial mounts For Paramount MEII/ME/MX+/MX mounts Available in different heights Made of ste...

A 17"/0.43m visual and astrographic telescope Uses PlaneWave's Corrected Dall-Kirkham (CDK) optical design 70mm diameter imaging circle No field c...

Huge 1-metre aperture class instrument featuring fused silica optics Dual Nasmyth focus ports, allowing simultaneous mounting of two instruments a...

A 14"/0.36m visual and astrographic telescope Uses PlaneWave's Corrected Dall-Kirkham (CDK) optical design 70mm diameter imaging circle No field c...

A 20"/0.508m f/6.8 visual and astrographic telescope Uses PlaneWave's Corrected Dall-Kirkham (CDK) optical design 70mm diameter imaging circle No ...