Originally posted by jsherman999 I've never really figured out why flash is so important to some people... I feel that it's capable of ruining almost any shot, and sometimes makes the best DSLR's produce images that are indistinguishable from point & shoots.
There are cases where there is absolutely no way to get a shot without a flash, but in situations where it's not absolutely necessary, I personally would rather have a beautiful slightly underexposed shot vs. a glaring, two dimensional, bad-studio-portrait-quality image.
Am I missing something here? Maybe I've just not seen good flash photography, or have seen it but not known it was flash, etc...
(Coulda sworn I posted here a half hour ago)
At a wedding, there's really no substitute for a good flash, except perhaps a Nikon D3 with incredible high ISO. Your lighting conditions really suck--5EV or less is commonplace. While a flash might not be the best choice during the ceremony, when you're walking around at the reception afterwards, 1) nobody cares 2) people are moving around quickly, and well outside of the DOF for f1.4, or even f2.8. In those cases, using a flash to bring yourself up to a nice f5.6 is a boon. It doesn't look unnatural as long as your techniques are used well--what's the difference between a ceiling light and a flash bounced off the ceiling? Not much. Check out the Strobist flickr group for examples of AMAZING flash shots.
Take both lenses... use the 50 for the ceremony and situations where a flash would be inappropriate, and use the 28-75 for when it really doesn't matter. Fifties are nice for candids, too--small, light, fast, and nobody really knows you're taking a picture. The focal length is just right for kids, and maybe a little bit too tight for adults standing up.
Have fun!