Sigma 170-500mm F/5-6.3 APO D Lens for Nikon F

The Sigma 170-500mm f/5-6.3 APO D is a full-frame super-telephoto zoom lens built for Nikon’s F-mount SLR and DSLR system. Covering a focal range from 170mm to 500mm with a variable maximum aperture, it addresses a broad super-telephoto zoom range suited to wildlife, sports, aviation, and nature photography where extended reach from a single lens is a priority. The APO designation indicates the use of apochromatic optical elements to help control chromatic aberration and maintain color accuracy and contrast at longer focal lengths where such aberrations are more pronounced, and the D designation indicates distance information transmission to compatible Nikon bodies for more accurate metering and flash exposure calculations. Autofocus is handled via Nikon’s screw-drive system, requiring a camera body with a built-in focus motor for autofocus operation, while remaining fully compatible with manual focus on all F-mount bodies.

– 170-500mm super-telephoto zoom focal range
– Variable f/5-6.3 maximum aperture
– APO apochromatic elements for chromatic aberration control
– D designation for distance information transmission
– Autofocus via camera body screw-drive system
– Fully manual focus compatible on all F-mount bodies
– Nikon F-mount compatibility
– Full-frame coverage
– Third-party alternative optic from Sigma