The Swarovski TLS APO makes it easier than ever to put your DSLR camera to work with the Swarovski ATX or STX modular scope. With a built-in 30mm pancake camera lens, all you need to do is attach your camera body and T-ring (sold separately) to the TLS APO, use the included DR-X sleeve to slide it over the scope eyepiece, and you are ready to start digiscoping.