I want a nice, sharp accross the field lens by like f16--it should cover 11x14 with ample movements there are a couple of apo nikkors on ebay right now for like 550bucks --you got a better deal, I'm interested I want a 100% functional lens that means no flaws that "won't make a difference"--no separation. The lens must have coverage specs which indicate that it covers the format--no lenses that are not spec'ed for ULF but "squeak" at 11x14...no way. I want real bonafide scientifically determined coverage--not subjective "buzzer" coverage. READ MY LIPS: separation DOES matter--it decreases coverage--if that extra lens area around the periphery was not needed for imaging, the designers would not have made the glass that big. Nicks and scratches DO matter--of course they degrade optical quality--common sense, folks. so, please, no offers of any tonopah turds/galleygarbage. looking for similar to the 30 inchers on ebay for 550 bucks. you got one laying around that you want to get rid of, I'm your man--otherwise, I'll get one of them. Thank you. ps...I got a 690 zeiss protar--that one is not sharp enough at f16. no offers of 2000 bucks...I can get what I need for 550 on ebay right now. THANK YOU.