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Pentax smc DA Star 55mm F1.4 SDM versus Pentax smc DA 50mm f1.8 versus Pentax smc FA 50mm F1.4

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

Pentax smc DA Star 55mm F1.4 SDM

DxOMark Score

Best at f=55mm & f/2[?]
20

Lens Metric Scores

Sharpness
[?]
8P-Mpix
Transmission
[?]
1.7TStop
Distortion
[?]
0.2%
Vignetting
[?]
-0.8EV
Chr. aberration
[?]
8µm
dxomark
Pentax smc DA 50mm f1.8

DxOMark Score

Best at f=50mm & f/2.8[?]
19

Lens Metric Scores

Sharpness
[?]
8P-Mpix
Transmission
[?]
2TStop
Distortion
[?]
0.1%
Vignetting
[?]
-0.8EV
Chr. aberration
[?]
2µm
dxomark
Pentax smc FA 50mm F1.4

DxOMark Score

Best at f=50mm & f/4[?]
17

Lens Metric Scores

Sharpness
[?]
8P-Mpix
Transmission
[?]
1.7TStop
Distortion
[?]
0.2%
Vignetting
[?]
-0.8EV
Chr. aberration
[?]
16µm
dxomark
Pentax smc DA Star 55mm F1.4 SDM
Announced2008-09-01 
Indicative price (USD) 640 
Aperturef/1.4  
Focal range (mm) 55  
Filter diameter (mm) 58 
Max diameter (mm) 70.5 
Mount typePentax KAF  
StabilizationNo  
AF MotorSDM  
Zoom type/  
Rotating front elementNo  
Tripod mountNo  
ColorBlack  
Full-Time manual focusYes  
Number of lenses9  
Number of groups8  
Diaphragm blades9  
Circular apertureYes  
Length (mm)66  
Weight (gr)375  

Certain fields may be left blank. They will be updated as soon as possible.
dxomark
Pentax smc DA 50mm f1.8
Announced2012-05-22 
Indicative price (USD) 249 
Aperturef/1.8  
Focal range (mm) 50  
Filter diameter (mm) 52 
Max diameter (mm) 63 
Mount typePentax KAF  
StabilizationNo  
AF MotorNo  
Zoom type/  
Rotating front elementNo  
Tripod mountNo  
ColorBlack  
Full-Time manual focusNo  
Number of lenses6  
Number of groups5  
Diaphragm blades7  
Circular apertureNo  
Length (mm)38.5  
Weight (gr)122  

Certain fields may be left blank. They will be updated as soon as possible.
dxomark
Pentax smc FA 50mm F1.4
Announced1991-01-01 
Indicative price (USD) 450 
Aperturef/1.4  
Focal range (mm) 50  
Filter diameter (mm) 49 
Max diameter (mm) 65 
Mount typePentax KAF  
StabilizationNo  
AF MotorNo  
Zoom type/  
Rotating front elementNo  
Tripod mountNo  
ColorBlack  
Full-Time manual focus  
Number of lenses7  
Number of groups6  
Diaphragm blades6  
Circular apertureNo  
Length (mm)37  
Weight (gr)220  

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

in P-Mpix
Focal: 55
 
Focal: 50
 
Focal: 50
Aperture: 0
 
Aperture: 0
 
Aperture: 0
Focal: 55
 
Focal: 50
 
Focal: 50

in EV

in EV
Focal: 55
 
Focal: 50
 
Focal: 50
Aperture: 1.4 - 1.8 - 2 - 2.8 - 4 - 5.6 - 8 - 11 - 22
 
Aperture: 1.8 - 2 - 2.8 - 4 - 5.6 - 8 - 11 - 22
 
Aperture: 1.4 - 1.8 - 2 - 2.8 - 4 - 5.6 - 8 - 11 - 22

in micrometer