I have most of the Konica lenses from 15 to 400. My 400 is the later and smaller UC model. Konica made pre-set lenses which were sold until the time of the Autoreflex T2. Getting every version of every focal length is not easy. Some years ago I wrote an article on this for CameraShopper and used Konica's 28mm SLR lenses as my example. I thought I had every version and then Greg Weber found two I never knew about. The Konica SLRs I like the most are the T2, T3N, TC and FT-1. The ones I like less are the T3, T4, FS-1, FP-1, and TC-X. Some interesting and less common models are the original Auto Reflex, Autorex P, A1000, T3 100th Anniversary body, A3 and FC-1. My favorite Hexanons: 15/2.8 UC fisheye, 21/4, 24/2.8 (2nd version), 28/1.8 UC, 35/2, 50/1.4 (1st version), 85/1.8, 135/3.2, 200/3.5, 300/4.5. The 55/3.5 macro lens is nice but I use the 55/2.8 Vivitar more often. Along with the Hexanons I have many Konica mount lenses I like. Some of these cost a lot less in Konica mount than in Nikon or Pentax mounts because they don't fit any DSLR systems with full fuctionality.