Photographic lens
The Sony FE 28-60mm F4-5.6 is a full-frame variable maximum aperture standard zoom lens for the Sony E-mount, announced by Sony on September 14, 2020.[1] It was introduced on the same day as the Sony α7C, for which it is available bundled as a kit lens. At 167g it is the smallest and lightest full-frame zoom lens available for the E-mount.
Though designed for Sony's full-frame E-mount cameras, the lens can be used on Sony's APS-C E-mount camera bodies, with an equivalent full-frame field-of-view of 42-90mm (1.5x crop factor).[2]
Construction
The lens has a plastic exterior with a plastic zoom ring and smaller electronic focus ring. It also has a mechanical retracting mechanism which must be extended before shooting. The length of the lens varies through the zoom range, but stays constant when focusing. The mount is sealed with a gasket for dust and weather resistance.[3] The lens does not feature optical image stabilization, instead relying on the camera's in-body SteadyShot stabilization when available.
Optical properties
Centre sharpness is high throughout the zoom range, with soft extreme corners that improve as the lens is stopped down to f/8. Vignetting performance is average, occurring most noticeably at the widest focal lengths and apertures. The lens exhibits moderate lateral and longitudinal chromatic aberration; the former is easily corrected either in-camera or in post-processing, with the latter persisting throughout the aperture range. Coma is noticeable but controlled. Strong barrel distortion is seen at 28mm which transitions to slight pincushion distortion at 60mm; however, this is also handled well by the in-camera corrections. The lens is near parfocal.[3][4]
Autofocus
The lens has an internal linear autofocus motor. It supports both manual focus and direct manual focus modes (DMF) electronically.[5] Focusing is quick, accurate and almost silent, with good low-light performance.[3]
See also
References
