Sigma AF 170-500mm f/5-6.3 APO Lens for Canon EF (AS-IS)

NOTE: This item is being sold AS-IS and may not be returned or exchanged. Autofocus does not function.

The Sigma AF 170-500mm f/5-6.3 APO is a full-frame super-telephoto zoom lens built for Canon’s EF mount 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. A third-party alternative to first-party Canon super-telephoto zoom lenses, offering extended reach at an accessible price point relative to comparable options in this focal range. Compatible with the full range of Canon EF mount full-frame and APS-C DSLR bodies.

– 170-500mm super-telephoto zoom focal range
– Variable f/5-6.3 maximum aperture
– APO apochromatic elements for chromatic aberration control
– Canon EF mount compatibility
– Full-frame and APS-C format coverage
– Third-party alternative optic from Sigma
– Accessible price point for super-telephoto reach