I've got a couple of dance performances coming up - both will be up on a stage, with undetermined (but likely poor) lighting.
Currently, with my 7D I have a 50mm f1.8, tammy 28-75 f2.8 and a 70-200 f4
i'm considering picking up a used 85mm f1.8 though - more reach, better low light. I've never used the 70-200 for low light stage shoots though - will it be enough, or should I invest in the 85mm?






