Originally posted by philbaum Like you, i've bought an F2.8 Tamron zoom 28-75 for this theatre work, but by itself, that F2.8 is not adequate for the low light, besides limiting DOF.
I don't do nightclubs, but i imagine folks that like to take pictures of performers in that environment have the same problem that i experienced.
Like you I end up shooting things like theatre, dance and performance art events. Certainly the improved ISO handling of a cameras would be a reason to use one over another, especially if one does a lot of work like this. But I have not found too much difference... or even too much improvement. In fact I am pretty sure my K100D Super is at the top of the game still, several models later.
But I don't use it because the K20D offers too many other advantages in terms of handling (yes, the body counts!) and is only incrementally worse.
All in all, the lenses matter much more.
But now, if you are going to consider full frame...
EDIT: I just noticed that Marc said essentially the same thing. This seems to happen.