The 24-70mm f/2.8 Carl Zeiss T* Alpha A-Mount Standard Zoom Lens from Sony is a bright zoom lens, specifically designed by Carl Zeiss for the Sony Alpha-series of DSLR cameras. Unique to this lens is the Carl Zeiss T* (T-star) coating that helps reduce lens flare, while increasing contrast. When used with cropped APS-C sized DSLR cameras, the equivalent focal length for this lens is 36-105mm. It is a compact all-in-one lens, and is ideal for snapshots, portraits, interiors or outdoor scenery.
This lens is constructed of 16 elements in 13 groups, as well as 3x Extra-low Dispersion (ED) glass elements, which all help to deliver sharp, clear photos throughout the zoom range. It has a minimum focusing distance of 1.5' and a front-end filter diameter of 77mm.
The lens' maximum aperture is a fast f/2.8 and can be maintained throughout the zoom range. Its minimum aperture is f/22. It also has 9 circular aperture blades that work to produce smooth, out of focus background effects.
| Performance | |
|---|---|
| Focal Length |
24 - 70 mm Comparable APS-C Focal Length: 36 - 105 mm |
| Aperture |
Maximum: f/2.8 Minimum: f/22 |
| Camera Mount Type | Sony Alpha, Minolta AF |
| Format Compatibility |
DSLR (APS-C Sensor) 35mm Film / Full-Frame Digital Sensor |
| Angle of View | 84° - 34° |
| Minimum Focus Distance | 1.12' (34 cm) |
| Magnification | 0.25x |
| Maximum Reproduction Ratio | 1:4 |
| Groups/Elements | 13/17 |
| Diaphragm Blades | 9 |
| Features | |
|---|---|
| Image Stabilization | No |
| Autofocus | Yes |
| Tripod Collar | No |
| Physical | |
|---|---|
| Filter Thread | Front: 77 mm |
| Dimensions (DxL) | Approx. 3.27 x 4.37" (8.31 x 11.10 cm) |
| Weight | 2.17 lb (0.98 kg) |