Celestron C11 Dew Shield NWA 2965 ST-4 type Autoguider Interface: Supports

ST-4 type Autoguider Interface: Supports 0

the price therefore initially may appear high for "nothing more than" a clamping device

exoplanets

A piggyback ride for your camera

Celestron C11 Dew Shield NWA 2965 ST-4 type Autoguider Interface: SupportsThis model is compatible with all 9. 25" and 11" optical tubes. A Lens Shade Dew Cap is a tube, of approximately the same diameter as your telescope tube, designed to fit on the front end of the telescope to reduce the amount of dew that builds up on the corrector plate. It also serves as a Len Shade by preventing stray light from falling on the corrector plate, which greatly improves contrast.