The lighting in this butterfly exhibit wasn't overly dark, but it also wasn't very even. Lots of hot spots and a less-than-ideal color temperature. The camera seemed to handle it fine, though. It was also incrediby humid inside the butterfly room and the camera didn't fog, which suggests the weather sealing is actually solid for an entry-level camera.
ISO: 800
Shutter Speed: 1/400 sec
Aperture: F/5.6
Focal Length: 55mm