Today I found out about your waterproof SLR case. It seems perfect for use on trips with packraft or kayak. I do have one question though. Can you zoom when the camera is in the case?   Hello and thank you for your enquiry. Yes, zoom does work with a modern DSLR. Manual zoom is not easy however. The lens needs to have a diameter of 80mm or less and a physical length of less than about 100mm to fit. In practice this means that most zoom lenses of up to 200mm focal length will fit. If you tell us what camera and lens you plan to use we should be able to tell you whether or not they are likely to fit. Thank you for your interest in Aquapac, we appreciate it!