This is a great bag for my Canon S3 IS. It fits the body, the wide angle lens, telephoto lens, and lens adapter with a little extra room on the top for small personal effects. I found this bag to be very convenient as a personal bag when flying as you can fit a small paperback, passport, wallet, keys, cell phone and charger in addition to the camera equipment. I only wished that I could fit the S3 with the wide angle lens attached in addition to the telephoto lens. I would not recommend this bag for SLR cameras. It barely fits my 40D with the 28-135mm kit lens but that's not what I bought this bag for.