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Canon EF 40mm f/2.8 STM versus Pentax smc DA 40mm f2.8 XS

Scores and measurements are available only for tested lenses. For preview lenses, you can compare their specs.

Canon EF 40mm f/2.8 STM

DxOMark Score

Best at f=40mm & f/2.8[?]
18

Lens Metric Scores

Sharpness
[?]
9P-Mpix
Transmission
[?]
2.8TStop
Distortion
[?]
0.1%
Vignetting
[?]
-0.7EV
Chr. aberration
[?]
14µm
dxomark
Pentax smc DA 40mm f2.8 XS

DxOMark Score

Best at f=40mm & f/2.8[?]
16

Lens Metric Scores

Sharpness
[?]
7P-Mpix
Transmission
[?]
2.9TStop
Distortion
[?]
0.2%
Vignetting
[?]
-0.8EV
Chr. aberration
[?]
11µm
dxomark
Canon EF 40mm f/2.8 STM
Announced2012-06-08 
Indicative price (USD) 249 
Aperturef/2.8  
Focal range (mm) 40  
Filter diameter (mm) 52 
Max diameter (mm) 68 
Mount typeCanon EF  
StabilizationNo  
AF MotorStepper motor (STM)  
Zoom type/  
Rotating front element  
Tripod mountNo  
ColorBlack  
Full-Time manual focusYes  
Number of lenses6  
Number of groups4  
Diaphragm blades7  
Circular apertureNo  
Length (mm)27  
Weight (gr)130  

Certain fields may be left blank. They will be updated as soon as possible.
dxomark
Pentax smc DA 40mm f2.8 XS
Announced2012-02-01 
Indicative price (USD) 250 
Aperturef/2.8  
Focal range (mm) 40  
Filter diameter (mm) 27 
Max diameter (mm) 63.5 
Mount typePentax KAF  
StabilizationNo  
AF MotorNo  
Zoom type/  
Rotating front elementNo  
Tripod mountNo  
ColorBlack, Silver  
Full-Time manual focusNo  
Number of lenses5  
Number of groups4  
Diaphragm blades9  
Circular apertureYes  
Length (mm)9.14  
Weight (gr)51  

Certain fields may be left blank. They will be updated as soon as possible.
dxomark

in P-Mpix
Focal: 40
 
Focal: 40
 
Aperture: 0
 
Aperture: 0
 
Focal: 40
 
Focal: 40
 

in EV

in EV
Focal: 40
 
Focal: 40
 
Aperture: 2.8 - 4 - 5.6 - 8 - 11 - 22
 
Aperture: 2.8 - 4 - 5.6 - 8 - 11 - 22
 

in micrometer