At the Lowell Star Party last June I had a casual view of Jupiter through one of the 4-inch Stellarvue telescopes, and was impressed. Sorry I can't recall which model it was (SV102, SV4, SV105) --- but I think the tube was medium-length, so possibly the SV105. Remember that if you go larger, such as the 5- and 6-inchers Dwight mentioned, you're sacrificing greatly in portability because the mount required gets big fast. I'll second the notion of a refractor-fest, though it could be done at some regular event. I'll be pleased to bring along my "vintage" (450mm focal length) 70mm Pronto so you can see the chromatic error of an ordinary doublet. \Brian -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.