Zoo Indoor Shots
I brought my girlfriends 70-300mm IS, and tried using it under very little light, as I was able to get good support in the feline house. The first shots below are all 300mm taken at around 1/15th f a second. I was able to support the camera on a railing, but no tripod was used. I must say I was surprised at the sharpness when I got home.
Most of the other indoor images are with the good faithful 50mm F/1.8.