Hi All: I have finally decided to part with this dream 4" refractor. It is the last one made by Thomas Back. It's the CNC version air spaced triplet with, extension tube, two rings, lens and dust covers, finder bracket, finder scope and very nice metal case. Thomas Back told me it has one of the finest optical systems he has ever seen. Check out the review in the June 2002 issue of Sky and Telescope which stated that this scope's optics are some of the finest regardless of price. Why am I selling this scope? Because I have physical limitations that prevent me from using it to its fullest capacity. Thanks for looking.