Contax G Biogon 21mm f/2.8

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Availability
Discontinued more info Yes Contribute
Year announced No Data Contribute
General
Lens Mounts
  • Contax G
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Focal Type Wide Contribute
Lens
Focal Length more info 21mm Contribute
Angle of View more info 92 Contribute
Max Aperture more info f/2.8 Contribute
Min Aperture more info f/22 Contribute
Filter Size more info 55mm Contribute
35mm equivalent No Data Contribute
Internal focusing more info No Data Contribute
Focusing
Min Focus 50cm Contribute
Stabilised No Contribute
Macro more info No Contribute
Construction
Blades 7 Contribute
Elements 9 Contribute
Groups 7 Contribute
Box Contents
Box Contents more info No Data Contribute
Dimensions
Weight 180g Contribute
Height 35mm Contribute
Diameter 59mm Contribute
MTF Data
Effective focal length 21mm Contribute
Weighted MTF 21 mm: f2.8 0.79 | f4 0.84 | f8 0.84 Contribute
Average Weighted MTF 0.84 Contribute
Weighted MTF 10 lp/mm 0.91 Contribute
Weighted MTF 20 lp/mm 0.81 Contribute
Weighted MTF 40 lp/mm 0.61 Contribute
Distortion No Data Contribute
Grade 4.3 Contribute
Photodo MTF Score 4.3 Contribute

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