Howdy! So, I guess I'm in the market for a wide angle fixed lense and I'll only buy an AI or AIS nikon for now (I have many reasons that conspire towards this so, I'll limit myself to this family). It basically boils down to which one! 28mm, 24mm? Both f/2.8. I've resonantly come across the opportunity to buy an AI 28mm f/2 that seems to be in beautiful shape. Does anybody have any experience with this lense? The criterion I go for: is it sharp and constrasty? Barrel distortion is to be expected so, as long as it doesn't look like a fish eye I guess I'm happy. And should I be considering a 20mm? I know it's up to taste but are there any thoughts and feelings about it? I tend to stay away from it for I feel like it's too much image to control and compose.. At least in the urban settings I'm frequently in.. ps:This is My first APUG post.. ! "Shooting in a FM2n.. What a joy!!"