Hi everybody. The question is this: in your opinion, is there any advantage to keeping the slower prime when you also have the fast prime in that focal length? Background is as follows. For years I was a three or four-lens user, all primes. When the bottom dropped out of FD prices several years ago, I bought several more lenses second-hand. Over the years, through luck and bargain-hunting, I've bought the fast prime in most focal lengths, like the f/2 series. At this point I will probably never buy another FD lens. This means I have two or more lenses in most focal lengths, and some of them see little or no use-- like the 24/2.8, 28/2.8, 35/2.8, 85/1.8, 100/2.8, and 200/4. Is there any reason to keep them? Do any of them have properties which beat the faster lenses? Just to pre-empt the two obvious answers. (i) Somebody will say the one-year rule applies to lenses, like it does to clothes, so I should clear the deadwood. (ii) Somebody else will say there's no point, because consumer primes have little resale value, and it's hardly worth the time and trouble. Your opinions?