With Venus a brilliant object in the early evening sky on Boxing day I put the webcam on the back of the Celestron 9.25″. The ultimate goal is to image the cloud detail on Venus and to this end I’ve aquired a violet filter (Wratten 47) but as this doesn’t block IR I need to piggy-back an IR block filter. Until I obtain one; this is in visible light with an IR-UV block to limit atmospheric dispertion.
