Swarovski Demo Products Swarovski demo products have been slightly used for display or demonstrations by Swarovski during outdoor industry events. They may exhibit minor cosmetic imperfections that will vary from demo product to product. Swarovski demo products and their included accessories are guaranteed by Swarovski to operate to the standards for a new product. In rare cases, one or more accessories may be missing. All Swarovski demo products are covered by the Swarovski Limited Lifetime Warranty (View Warranty). The Swarovski TLS APO 43mm Digiscoping Lens for ATS/STS/ATM/STM/STR 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.