Hi,
The lens that I am most internested in buying now, the 17-85mm, has a filter attachment of 58mm. However other lenses down the road would almost certainly have something bigger. So should I hestitate for any reason in considering getting two filters, or will there be no quality loss if I use a 77mm filter and a step up ring to fit on the lenses who have a smaller filter attachment? Also, if this is the best course of action, is there anything that I should look for in a step up ring, or are they all more or less the same? And lastly, is it possible to use a lens cap with the step up ring, or does it get in the way?
Thank you for your help.
Stefan