Carl Zeiss Distagon T2,8/21 is a Manual Focus (MF)
Wideangle Prime lens with 35mm FF max sensor coverage and it is designed to be used with Pentax KAF mount cameras.
Lens Mount
Carl Zeiss Distagon T2,8/21 is compatible with cameras that have
Pentax KAF lens mount. Some of the latest released cameras with Pentax KAF lens mount are
Pentax K-3 III,
Pentax K-1 II and
Pentax KP.
Sensor Coverage
Max sensor coverage of Carl Zeiss Distagon T2,8/21 is
35mm FF.
Focal Range
Carl Zeiss Distagon T2,8/21 has a fixed focal lenght of 21mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 31.5mm.
Optical Image Stabilization
Carl Zeiss Distagon T2,8/21 doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Maximum Magnification Ratio
Carl Zeiss Distagon T2,8/21 has a Max Magnification Ratio of
0.2x and has a minimum focusing distance of
0.22m.
Aperture
Carl Zeiss Distagon T2,8/21 has a max aperture of F2.8 and a minimum aperture of F22.0.
Optical Formula
Carl Zeiss Distagon T2,8/21's optical formula consists of 16 elements in 13 groups.
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