Swarovski TLS APO 43mm Digiscoping Lens for ATX/STX Spotting Scopes In great condition, like new, comes in original box with Canon DSLR adapter. Paid $550 New, will Sell for $475 Highlights: For Digiscoping with DSLRs Apochromatic Lens For Full-Frame Imaging Sensor Cameras Enables Viewing and Photography Works with Angled or Straight Modules Features: The Swarovski TLS APO 43mm Digiscoping Lens for ATX/STX spotting scopes is a proprietary adapter used to connect a DSLR camera body with a full-size sensor to the viewing module of of the spotter, effectively using the scope as a lightweight, waterproof, super-telephoto lens. When the TLS APO, T2 adapter, and camera body are mounted to the spotting scope eyepiece, users are treated to a truly stunning digiscoping experience. The TLS APO has a 43mm lens that perfectly aligns the camera sensor with the focal plane of the transmitted image. Regardless of the camera used, you will capture contrast-rich and sharp video and still images using the premium optics of your Swarovski spotting scope. A camera and T2 camera adapter are required to complete the Swarovski digiscoping system, and are not included. Effective Focal Length ATX/STX 65: 1,075 - 2,580mm ATX/STX 85: 1,075 - 2,580mm ATX/STX 95: 1,290 - 3,010mm ATS/STS 65: 1,075 - 2,150mm ATS/STS 80: 1,075 - 2,150mm Minimum Aperture ATX/STX 65: 16.5 ATX/STX 85: 12.6 ATX/STX 95: 13.6 ATS/STS 65: 16.5 ATS/STS 80: 13.4