Carl Zeiss 21mm f/2.8 Distagon T* 2.8/21

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Lens Specifications
Name Carl Zeiss 21mm f/2.8 Distagon T* 2.8/21
Image Circle 35mm
Type Wide Prime
Focal Length 21mm
APS Equivalent 1.5x: 31.5mm
Max Aperture f/2.8
Min Aperture f/22
Diaphragm Blades
Lens Construction 16 elements in 13 groups
Diagonal Angle of View(Based on image circle) 90 degrees
Focus Details Manual focus only
Front Element Rotation No
Zoom System n/a
Closest Focus 0.22m / 8.7 in.
Magnification Ratio 0.2x / 1:5
Filter Size 82mm
Dimensions(Length x Diameter) 109mm x 87mm / 4.3 in. x 3.4 in.
Weight 600g / 21 oz.
Notes Available SLR mounts: Canon EF-Mount (ZE), Nikon F-Mount (ZF, ZF.2), Pentax K-Mount (ZK). Nikon ZF.2 version includes CPU interface for autoexposure and EXIF lens info. Lens shade included.
Typical Online Price US$1,550