Hello again, Thanks for all the responses yesterday about the 35-70 2.8D, I really appreciate it. It sounds like the general consensus is that this lens stays put. Now I have another question... I would be interested to know what filters the owners of the 20-35 2.8D are using successfully without vigenetting. I looking for info on what brands, models, etc. you, the owners, are using on this fabulous lens? Thanks again. --Mark