Sigma DG A 135mm f/1.8 HSM

Sigma DG A 135mm f/1.8 HSM is a auto focus prime lens for full frame cameras.

Optical design

It is a ring-type ultrasonic motor designed to provide quick and silent focusing. Has 9 aperture blades, with this amount of aperture blades you will be satisfied with the result. Wide open, subjects located outside the depth of field are shown very blurred.

Physical characteristics

115 mm long, requires consideration if you want to carry in the camera bag. Weights 1130 grams so it is a heavy lens, consider using its own lens bag. With a lens filter diameter of 82 mm lens filters in this range can be expensive, purchase lens - and filter - only if you plan to keep them for long time, make a try with used ones.