From what I have read this camera/lens has a problem with vingetting (sp). I've just acquired a Celestron 102mm spotting scope (500mm, f/5) which has a 2" focuser. (although they use a reducer to 1.25" as standard equipt.) My hope is to purchase a 2" diagonal and a lens to match. Then to somehow adapt my oly to this. Does this sound like it has a chance of working? Reducing vingetting? Any ideas on how I might couple this together? I'm in no great hurry to do this so if you are reading this a month or two after I have posted, please let me hear your feed-back!