I've got a dilemma, should I go for lens A, the Tammy, or lens B, the Sigma?
I've decided to stick to a two lens setup, if I go with the Tammy I'll get the Sigma 55-200 and if I go with the Sigma 17-70 I'll get the Sigma 70-300 DO.
The problem is whether to go with the 17-70 f/2.8-4.5 or the 17-50 f/2.8. The reach doesn't really matter to me, since I'll get it one way or another. The shots I've seen from the Sigma blow the Tammy out of the water IQ wise but the Sigma doesn't have a constant 2.8, the Tammy does.
The Tammy has a constant 2.8 but the test shots I've seen really don't look all that vivid, color-wise.
Anyone have both lenses and want to give their input? I really would like a constant 2.8 but if the lens itself is a dud I'd rather go for the f/4.5 indoors.