|DISTAGON||Retrofocus lens based on asymmetric Distagon optical design. First Distagon appeared in 1953, the optical scheme has evolved since then and is now used not only in Carl Zeiss lens.|
|T*||The multi-layer coating is applied to the surface of lens elements. It boosts light transmission, ensures sharp and high contrast images, minimizes ghosting and flares.|
|Position in the lineup|
|ZEISS Milvus Distagon T* 21mm F/2.8 ZE / ZF.2||Sep 2015||⊗|
|Carl Zeiss Distagon T* 21mm F/2.8 ZE / ZF / ZF.2 / ZK||Sep 2008||⊗|
|Carl Zeiss C/Y Distagon T* 21mm F/2.8||1994||⊗|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||91.7° (35mm full frame)|
|Lens construction:||15 elements in 13 groups, including ASPH|
|Closest focusing distance:||25 cm|
|Number of diaphragm blades:||6|
|Maximum diameter x Length:||Ø85 x 90.5 mm|
|Materials:||Metallic barrel, metallic mount|
|Filter size:||82 mm|
|Hood type:||Metal hood W-1|
Design and Features
This 21 mm Distagon® T* f/2.8 wide-angle lens with its angular field of 92º meets the demand of experienced wide-angle photographers for a lens which would bridge the relatively large gap between the 18 mm Distagon® f/4 and 25 mm Distagon® f/2.8 lenses in the Contax® lens range. This lens, however, is not a modification of the existing wide-angle lenses, but a totally new design using the latest technologies.
All of the possibilities of correcting residual chromatic aberration were utilized to the full. The systematic use of glass featuring extreme anomalous partial dispersion combined with high-index glass resulted in a level of correction never achieved before. The incorporation of an internal focusing system and a floating element ensures that this lens delivers superior image quality in all conditions.
Aspherical elements (ASPH, XA) minimize spherical aberration, astigmatism, coma and ensure excellent sharpness and contrast even at maximum aperture.
The lens incorporates a floating system that provides correction of aberrations and ensures constantly high image quality at the entire range of focusing distances from infinity down to the closest focusing distance. Learn more
|User Manual. English, Adobe PDF, 114 KB|
Alternatives (MF, 18..24 mm)
|Cosina 24mm F/2.8 MC Macro||⊗|
|Yashica DSB 24mm F/2.8||⊗|
|Yashica ML 24mm F/2.8||⊗|