YONGNUO YN50mm 1.8f Large Opening Mount Lens, DSM Motor, Low Dispersion Glass, Compatible with Sony APS-C

• Compared with traditional DC motors, digitally controlled stepper motors (DSM) have fast start-stop response, high focus accuracy and quieter focusing action, suitable for photo shooting and video recording.
• Electronic focus ring, supplemented by appropriate damping, can provide a smooth and high-precision manual focusing experience
• Flexible use of F1.8 wide aperture, easy to achieve soft blurry effect, also can use low sensitivity and higher shutter to shoot in low light conditions
• The use of a low dispersion glass lens can not only better suppress the problem of dispersion, but also further improve the second-level spectrum
• Supports fast autofocus (AF) and manual focus (MF) with two focus modes

Product Specifications A focal length of equivalent to 35 mm: approx. 75 mm Mount: E :Mount Lens Frame: Full Frame APS-C Viewing angle: approx. 30.4 °. Lens Construction:8 x 7 Group Lens Opening blades: 7 blades Minimum Aperture: F/16 The minimum focus distance: approx. 0.45 m. The maximum time of ingradiation: approx. 0.14 × The diameter of the filter lens/no. Available:49mm/1 the maximum diametric and length: approxφ64×58mm Weight: approx. 146 g