Specification :
The 21mm Ultra-Wide Conversion Lens for FE 28mm f/2 Lens from Sony broadens the angle-of-view of the 28mm f/2 lens to 92º for an ultra wide focal length equivalence of 21mm when used with full-frame cameras. As this converter lens is uniquely compatible with the FE 28mm f/2 lens, it transmits EXIF data through the host lens to the camera. The optical design of the converter lens is comprised of 4 elements in 4 groups and when on the 28mm lens, it provides a maximum aperture of f/2.8 and a minimum manual focus distance of 7.9". When the lens is used with an APS-C E-Mount camera, the converter lens provides a 68° angle of view and a 31.5mm focal length equivalent. It is a compact addition to the 28mm lens with a bayonet mount and features a built-in petal-type lens hood.
| Focal Length | Full-Frame Camera: 21mm APS-C Camera (35mm Equivalent): 31.5mm |
| Lens Construction | 4 Elements / 4 Groups |
| Angle of View | Full-Frame: 92° APS-C: 68° |
| Aperture | On 28mm f/2 Lens Maximum: f/2.8 Minimum: f/22 |
| Minimum Focus Distance | On 28mm f/2 Lens Autofocus: 9.4" (24 cm) Manual Focus: 7.9" (20 cm) |
| Maximum Magnification | Autofocus: 0.15x Manual Focus: 0.20x |
| Dimensions | 2.8 x 2.0" (72 x 51 mm) |
| Weight | Not Specified by Manufacturer |
| Packaging Info | |
|---|---|
| Package Weight | 1.0 lb |
| Box Dimensions (LxWxH) | 4.7 x 4.5 x 3.7" |
