Flexible dew cap for GSO RC 254 with cutouts

Flexible dew shield, lined with black felt to protect the objective against condenstation. The dew shield is supplied with a hook-and-loop fastener along its entire length and is simply layed around the telescope's tube.

The recess provides space for prism rails that extend to the front end of the tube, or for guiding the camera cables (Hyperstar, RASA).