Swarovski ATX/STX TLS-APO SLR Adapator -The right choice for anyone who appreciates top-quality digiscoping, the TLS APO camera lens was developed as a complete system with the new ATX/STX spotting scopes. Its excellent optical quality makes it particularly attractive to the most discerning digiscopers who want to use single-lens reflex or system cameras. ATX/STX TLS: APO SLR Adaptor Fits: ATX/STX Spotting Scopes from Swarovski