Yeah, don't knock those "lesser" Nikkors, the 3.5 is pretty good especially in B&W. I believe there was an optical change about the switch to Ais offering closer focus but they are all pretty good, and can be found with little effort for little money. The couple of 28mm Ai 2.8 non-CRC I've had were decent, great color and actually pretty good bokeh, but compared to the couple of 28mm f/2 I have they were not AS good. Good, not GREAT, which the f/2 is, and since I've got way too many 28's they had to go, sold one to my friend in MINT condition for 99.00 and he was very happy as was I. So, don't rule out the Nikkor especially since you have two good bodies.