You are going to need a 2" SCT adapter if you intend using a refractor type diagonal otherwise as already stated a screw on 2" SCT diagonal, bear in mind that any SCT under 10" will not give you a full 2" opening and, as such, the full potential of a 2" eyepiece is not reached, however, having said that, and having used an 8" SCT for a long time, you will definately get the wow effect with a good diagonal and a 35mm Panoptic.
JohnG
|