Dim Lights, but Otherwise Pretty Good

I just got back from tech rehearsal. Everything went really well, though my play was pretty easy to do lights and sound for (it just has opening music, closing music, and a lighting configuration that stays the same for the entire play). The lighting seems rather subdued, though, and not just for my play. I'm not sure if that's due to a limitation of the theatre or what. But while I was thinking about taking pictures of the various shows, I think the lighting may be too dim; even my digital camera, which works really well in low-light situations, was having trouble tonight getting clear images. I'm going to try my uber-wide lens (a Canon 50mm f/1.4) tomorrow and see if that helps.