i recently purchased the FCON-T01 and am very pleased with the lens. i used it on a recent scuba diving trip both on the boat and underwater. i even changed the lens underwater. the images are just wonderful!!! the ease of use and resulting images are crisp and clear. this lens is a welcome addition to my TG-4. it is unobtrusive when attached to the camera and the CLA-T01 adapter holds the lens securely to the camera.