Yongnuo YN 50mm f/1.8S DF DSM Lens for Sony E
>> E-Mount Lens/Full-Frame Format
>> Aperture Range: f/1.8 to f/22
>> One Low Dispersion Element
>> Nano Multilayer Coating
>> Digital Stepping Motor AF System
>> Rounded 9-Blade Diaphragm
>> Dust and Waterproof Rubber Ring
>> USB Type-C Port for Firmware Updates
Featuring a lightweight and compact design, the YN 50mm f/1.8S DF DSM Lens from Yongnuo is a portrait-length prime designed for full-frame Sony E-mount mirrorless cameras. The lens has a bright f/1.8 design to suit working in low-light conditions and to enable increased control over depth of field for isolating subject matter. The optical design incorporates one low dispersion element, which helps to reduce chromatic aberrations and color fringing, and a nano multilayer coating has been applied to suppress flare and ghosting for improved contrast in strong lighting conditions. Balancing the optics is a DSM autofocus system, which promotes fast and quiet focusing performance to suit both photo and video applications.
>> Portrait-length prime lens designed for full-frame Sony E-mount mirrorless cameras.
>> Bright f/1.8 design suits working in difficult lighting conditions and also helps to achieve a compact overall form factor.
>> One low dispersion element limits color fringing and chromatic aberrations in order to achieve high clarity and color accuracy.
>> Nano multilayer coating has been applied to individual elements in order to control flare and ghosting to suit working in bright and backlit conditions.
>> Digital control stepping motor (DSM) offers notably quick, quiet, and precise autofocus performance. An internal focusing design also limits the overall length of the lens during use.
>> AF/MF focus mode switch quickly switches the focus mode.
>> Fn multifunction button quickly calls up a menu to perform certain shortcut operations.
>> Nine-blade diaphragm contributes to a smooth bokeh quality.
>> High-precision metal lens mount is durable and accurate for a secure fit with the camera body, and gold-plated contacts help to ensure consistent communication between the lens and camera.
>> Rubber ring effectively resists the entry of dust and water droplets.
>> USB Type-C port is incorporated for updating the lens's firmware.