Screw it on your regular camera with a lens width of 49mm, 52mm, 55mm. What you'll get: awesome fisheye snapshots in 120 or 35mm film format. The incredible Fisheye Adaptor can be screwed right onto your regular camera. Just select your weapon of choice among the set: 49mm, 52mm, 55mm, or 58mm. The results are blown-up circular fisheye images on 120mm film format, and bulging round images on 35mm!