The 50mm f/1.8 DT Alpha A-Mount Standard Prime Lens from Sony may look like a standard prime lens, but being a lens designed for cropped APS-C sized DT-mount cameras, it is actually a short telephoto lens with the 35mm equivalent of a 75mm focal length. The wide f/1.8 aperture, and seven circular aperture blades, provide excellent out of focus, "bokeh" background effects as well as faster shutter speeds for low-light shooting.
Build with Sony's Smooth Autofocus Motor (SAM), the 50mm lens elements are directly controlled by the SAM unit for fast yet smooth AF when you need it most. To reduce chromatic aberrations, Sony also built Extra-low Dispersion (ED) glass into the elements, producing sharper images with well defined contrast.
| Performance | |
|---|---|
| Focal Length |
50 mm Comparable APS-C Focal Length: 75 mm |
| Aperture |
Maximum: f/1.8 Minimum: f/22 |
| Camera Mount Type | Sony Alpha, Minolta AF |
| Format Compatibility | DSLR (APS-C Sensor) |
| Angle of View | 32° |
| Minimum Focus Distance | 1.12' (0.34 m) |
| Magnification | 0.20x |
| Maximum Reproduction Ratio | 1:5 |
| Groups/Elements | 5/6 |
| Diaphragm Blades | 7 |
| Features | |
|---|---|
| Image Stabilization | No |
| Autofocus | Yes |
| Tripod Collar | No |
| Physical | |
|---|---|
| Filter Thread | Front: 49 mm |
| Dimensions (DxL) | Approx. 1.77 x 2.76" (4.50 x 7.01 cm) |
| Weight | 6.00 oz (170 g) |