This is a 50 mm standard prime lens for Sony E-mount cameras, designed for full-frame bodies. Its large F1.8 maximum aperture and 7-blade circular aperture produce smooth background bokeh that makes a sharply focused subject stand out.
The updated double-gauss optical design includes an aspherical element that minimizes spherical aberration and coma. The double-gauss configuration also suppresses field curvature and distortion. A fast DC motor focus actuator system drives all lens groups, and the mount is metal.
The F1.8 aperture helps when shooting night scenes or dimly lit interiors. On an α series body with in-body image stabilization, it allows handheld shots in dark scenes without excessively high ISO sensitivity. On APS-C E-mount bodies, the equivalent focal length is about 75 mm.
- Model
- SEL50F18F
- Mount
- Sony E-mount
- Format
- Full-frame (also works on APS-C E-mount bodies)
- Focal length
- 50 mm; about 75 mm equivalent on APS-C
- Max aperture
- F1.8
- Aperture blades
- 7, circular aperture
- Optical design
- Double-gauss configuration with an aspherical element
- Focus drive
- DC motor focus actuator system driving all lens groups
- Mount material
- Metal
- Lens type
- Standard prime