Sigma AF 170-500mm f/5-6.3 APO DG

The lens has advanced optical elements and coatings to deliver sharp, high-resolution images. It has a good build quality, and is suitable for wildlife, sports, and landscape photography. The lens has a long focal length range, and the autofocus system is fast and accurate. It has a good bokeh, which is the quality of the out-of-focus areas in a photo. The lens can be used in both autofocus and manual focus modes. The lens has multiple lens elements, including APO (Apochromatic) elements, which help to reduce chromatic aberrations. The lens also has a DG (Digital) coating, which helps to reduce ghosting and flare. The lens is manufactured by Sigma, a well-known brand in the photography industry.

Optical design

Has 9 aperture blades, with this amount of aperture blades you will be satisfied with the result. Not the best in low light conditions but the lack of high aperture can be compensated with higher iso

Physical characteristics

Weights 1345 grams so it is a heavy lens, consider using its own lens bag. With a lens filter diameter of 86 mm finding lens filters in this range can be expensive consider using Cokin P system if you really need one. 232 mm long, with this size carry only if you use it.