Perrone: It was a generall question about Low Light Situation like Outdoor in the evening or Indoor with limited light. I have a 17-55mm 2.8 IS and a Nikon 50mm. Indoor I can see a big difference: The 2.8 has much more noise than the 50mm.
Loki: What is a Bic Lighter? Do you have a Link? I'm using a 7D with a Mount.