Zeiss Loxia Distagon T* 2.8/21mm
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| Maker | Zeiss |
|---|---|
| Lens mount(s) | Sony E-mount |
| Technical data | |
| Type | Prime |
| Focal length | 21mm |
| Image format | 35mm full-frame |
| Close focus distance | 0.25 metres (0.82 ft) |
| Max. magnification | 0.13x |
| Diaphragm blades | 10 |
| Construction | 11 elements in 9 groups |
| Features | |
| Manual focus override |  Yes |
| Weather-sealing | Yes |
| Lens-based stabilization |  No |
| Aperture ring | Yes |
| Unique features | Digital focus distance scale |
| Application | Landscape, Architectural |
| Physical | |
| Max. length | 72 millimetres (2.8 in) |
| Diameter | 62 millimetres (2.4 in) |
| Weight | 394 grams (0.869 lb) |
| Filter diameter | 52mm |
| Accessories | |
| Lens hood | Barrel-type, metal |
| History | |
| Introduction | 2015 |
| Retail info | |
| MSRP | $1499 USD |
The Zeiss Loxia Distagon T* 2/21mm is a full-frame (FE) wide-angle manual focus prime lens for the Sony E-mount, announced by Zeiss on October 12, 2015.
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 31.5mm.
Build quality
The lens features a minimalist weather resistant metal construction with a matte black finish and an aperture de-click screw found at the bottom of the lens.
Image Quality
The lens is exceptionally sharp from its maximum aperture of f/2.8 across the frame. Distortion and chromatic aberration are all well controlled. However, the lens suffers from moderate vignetting.
The lens also excels at low-light photography given its fast maximum aperture of f/2.8 and exceptional coma control. In addition, having a wide-angle field-of view allows for longer exposures to be taken of stars without the effect of star trails affecting the resultant image.
See also
References
- "Zeiss Batis 25mm F2: Digital Photography Review". dpreview. Retrieved 2017-06-18.