Leica Apo-Summicron-M 1:2/50mm ASPH

Specifications:

Focal Length 50 mm
Min. Aperture f/2.0  
Max. Aperture f/16  
Blades: 11  
Elements: 8  
Groups: 5  
Min. Foc. Dist. 0.7 m
AF: no  
Stabilization: no  
Class: Full Frame  
Mount: M  
Filter: 39 mm
Length: 47.0 mm
Diameter: 53.0 mm
Weight: 300 g
Launch: 2012  

Results:

Resolving Power: 1622 σ = 0.0
Contrast: 1517 σ = 0.0
Color: 1179 σ = 0.0
Bokeh: 1430 σ = 0.0
Star: 1061 σ = 0.0
Distortion: 1121 σ = 0.0
Falloff: 1077 σ = 0.0
Flare: 1200 σ = 0.0
LaCA: 1514 σ = 0.0
LoCA: 1740 σ = 0.0
LenScore™ 1399 σ = 0.0

Number of lenses measured: 1
 

Comment:

Outresolving our previous #1 normal prime, the Zeiss Apo Distagon T* 1.4/55 Otus, this extraordinary lens proves that great optical performance doesn't have to come at the cost of compactness. With just 8 elements in 5 groups, the Apo-Summicron is on par with the more than three times heavier and much more complex Otus; an accomplishment deserving of respect. Tiny compared to other top performance lenses, but a giant nonetheless.

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