I picked up a KX on ebay, which my girlfriend is now using a bit. The problem is, we both like 50mm primes and we only have 1 between us. It's a SMC-A 50mm f/1.7 and I really like it except that the aperture ring really sucks. On my 5n, I leave it in A mode a lot of the time because it's so bad. I was thinking of getting her a M series 50mm, and I figured that someone out there must have a closet full of these things that aren't being put to good use.
-Scott
