Sigma 500mm F4.5 APO
Launched February 1990

SIGMA APOCHROMATIC HIGH SPEED ULTRA AF TELEPHOTO 500mm F4.5
FOR CANON AF CAMERA MODEL EOS 650 620

To minimize the colour aberration, which is the inherent problem of ultra telephoto lens, this lens is using 2 Special low dispersion glases in the front lens group. To have a high speed AF mode and avoid heavy load to the AF motor, it incorporates an inner focusing system. In addition, with a floating lens element system, it will produce a high contrast and sharp image in entire focusing range from infinity to closest distance of 5 meters. Rear slot filter drawer for instant filter changing. It is fast, professional type, Apochromatic ultra telephoto lens.