Zeiss C Biogon T* 4.5/21 ZM

Specifications:

Focal Length 21 mm
Min. Aperture f/4.5  
Max. Aperture f/22  
Blades: 10  
Elements: 8  
Groups: 6  
Min. Foc. Dist. 0.5 m
AF: no  
Stabilization: no  
Class: Full Frame  
Mount: M  
Filter: 46 mm
Length: 56.0 mm
Diameter: 53.0 mm
Weight: 210 g
Launch: 2006  

Results:

Resolving Power: 800 σ = 0.0
Contrast: 818 σ = 0.0
Color: 846 σ = 0.0
Bokeh: 840 σ = 0.0
Star: 823 σ = 0.0
Distortion: 1018 σ = 0.0
Falloff: 757 σ = 0.0
Flare: 759 σ = 0.0
LaCA: 810 σ = 0.0
LoCA: 804 σ = 0.0
LenScore™ 830 σ = 0.0

Number of lenses measured: 1
 

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