Contax Cameras UK Limited

Carl Zeiss Biogon T* 21mm f2.8

G Series LensDesigned by Dr. Ludwig Bertele, the Biogon lens formulation exerts a powerful hold on the hearts of photographic fans around the world. Especially for use with the CONTAX G series, the T* 21mm f2.8 was perfected by Carl Zeiss using the latest in optical technology. Although the Biogon T* 21mm has an ultra-wide angle of view of 90 degreess, distortion is very low. High contrast is achieved even with the f stop wide open.

The Biogon T* 21mm lens combines rich gradation, clear, three-dimensional reproduction along with high colour saturation. This lens responds well to a wide variety of photographic applications from astistic expression to architectural photography.

The Biogon T* 21mm f2.8 lens uses a supplied optical viewfinder with a cross-hair reticle to provide an accurate ultra-wide angle view.

Specifications
Lens Composition
9 elements in 7 groups
Lens Image
Focal length
21.5 mm
Image Size
24 x 36mm
Angular Field
90°
Mount
CONTAX G Mount
Aperture
Pre-set
F stop scale
f3.5-5.6-8-11-16-22
Minimum Focus
0.5m
Filter connection
55mm (screw in)
Size
59 x 35.5mm (2-3/8x1-7/16in.)
Weight
180g (6.35 oz)
Accessories
Viewfinder GF-21mm,
Lens cap 55mm GK-51 (snap-type),
Lens rear cap GK-R2, Biogon case

 

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