I'll try to make this brief. I have the following lenses right now: 17-55 2.8 24-120VR 70-200VR & 1.7 tele 85mm 1.4 50mm 1.8 I have read great things about the 35mm f2 and although I love the 50mm; with the 85, I really don't need that length that much considering what I have now. The 50mm is extremely sharp, but would the 35mm be a waste considering I have the 17-55? The only thing that has me considering it is the that big 2.0.(and it's pretty affordable. For anyone who has it, just how sharp is it??? Suggestions greatly appreciated!!! Thanks..