The Schneider-Kreuznach Tele-Xenar 1000mm f/8 is an extreme telephoto large format lens with a 4-element, 2-group construction and 18-degree angle of view. Its 312mm image circle covers 8x10in format. With an M 127 filter thread, the telephoto design makes this extreme focal length practical by significantly reducing the required bellows extension. Designed for specialised long-distance large format photography and surveillance applications.