E-Mount Lens/Full-Frame FormatAperture Range: f/1.8 to f/22One Aspherical ElementDouble-Gauss Optical DesignDC
Autofocus MotorSeven-Blade Circular Diaphragm
- Large F1.8 maximum aperture enables beautiful defocusing effects, 7-blade circular aperture creates beautiful defocused bokeh
- Compact, lightweight design ideal for full-frame E-mount cameras, Aspherical element controls spherical aberration and coma
- Double-gauss configuration suppresses field curvature & distortion, Metal mount adds solid durability as well as a sophisticated feel, Fast DC motor focus actuator system drives all lens groups
- 75mm (35mm equivalent) focal length with APS-C sensor. Angle of View (APS-C) : 32 degree
- SEL50F18F
Optical Design

- One aspherical element is incorporated in the lens design to reduce astigmatism, field curvature, coma, and
other monochromatic aberrations
- Double-gauss optical configuration helps to reduce field curvature and distortions for more consistent image quality from edge-to-edge

- Besides contributing to depth of field control and low-light performance, the bright f/1.8 design also helps to achieve a lightweight and compact profile, making this lens suitable for everyday, walkaround shooting
- Rounded seven-blade diaphragm contributes to a pleasing bokeh quality when employing selective focus techniques
Autofocus and Physical Design
- DC actuator motor offers quick, quiet, and accurate autofocus performance to suit both stills and video applications
- Minimum focusing distance of 1.5' and a 0.15x maximum magnification suit working with nearby subjects
- Metal bayonet offers increased durability and a solid feel when mounting the lens