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I agree that you should take both of the zooms in order to get a full range of views, but if you can take the 85 as well then do so; having something faster than f/2.8 will come in handy for some indoor shots.
I'd suggest borrowing or renting a 50/1.4 or 35/1.4 as well, if it's going to be a wedding in a church or synagogue.
Also, if you're not already doing so (you don't have a list of your gear), be sure to take a back-up body (and ideally a back-up for the back-up, although I seldom do), extra batteries for flash and cameras, etc.
Edited on Dec 12, 2011 at 03:52 AM · View previous versions