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  Comparison # 343 
 
Lens Sharpness Comparison

Sigma 17-70 vs. Sony 35mm 1.8

Sharpness at 35mm.
Tested Apertures F1.8/F3.5, F2.8/F3.5, F5, F9, F16
 
Comparison by Sinan Ozturk   
  
  
  Comparison Photo # 1  
Photo_718Sigma 17-70 F/2.8-4 DS Macro HSM  
against
Photo_711 Sony 35mm DT F/1.8 SAM
F3.5 1/125 100 35mm.    
  F1.8 1/1000100 35mm.  
Photo by Sinan Ozturk  Photo by Sinan Ozturk 
100% (1:1) Crop Samples
Sigma 17-70 F/2.8-4 DS Macro HSM
Focus Point
F/3.5
Brightness 107
9% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/3.5
Brightness 157
7% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Around Center
F/3.5
Brightness 88
5% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Border (Left)
F/3.5
Brightness 92
11% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Between Center and Right Border
F/3.5
Brightness 153
13% Brighter
Sony 35mm DT F/1.8 SAM
Focus Point
F/1.8
Brightness 85
9% Darker
Sony 35mm DT F/1.8 SAM
Center
F/1.8
Brightness 140
7% Darker
Sony 35mm DT F/1.8 SAM
Around Center
F/1.8
Brightness 77
5% Darker
Sony 35mm DT F/1.8 SAM
Border (Left)
F/1.8
Brightness 65
11% Darker
Sony 35mm DT F/1.8 SAM
Between Center and Right Border
F/1.8
Brightness 121
13% Darker
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 2  
Photo_718Sigma 17-70 F/2.8-4 DS Macro HSM  
against
Photo_710 Sony 35mm DT F/1.8 SAM
F3.5 1/125 100 35mm.    
  F2.8 1/400100 35mm.  
100% (1:1) Crop Samples
Sigma 17-70 F/2.8-4 DS Macro HSM
Focus Point
F/3.5
Brightness 107
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/3.5
Brightness 157
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Around Center
F/3.5
Brightness 88
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Border (Left)
F/3.5
Brightness 92
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Between Center and Right Border
F/3.5
Brightness 153
(Almost Same)
Sony 35mm DT F/1.8 SAM
Focus Point
F/2.8
Brightness 98
(Almost Same)
Sony 35mm DT F/1.8 SAM
Center
F/2.8
Brightness 148
(Almost Same)
Sony 35mm DT F/1.8 SAM
Around Center
F/2.8
Brightness 86
(Almost Same)
Sony 35mm DT F/1.8 SAM
Border (Left)
F/2.8
Brightness 100
(Almost Same)
Sony 35mm DT F/1.8 SAM
Between Center and Right Border
F/2.8
Brightness 148
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 3  
Photo_717Sigma 17-70 F/2.8-4 DS Macro HSM  
against
Photo_713 Sony 35mm DT F/1.8 SAM
F5.0 1/60 100 35mm.    
  F5.0 1/125100 35mm.  
100% (1:1) Crop Samples
Sigma 17-70 F/2.8-4 DS Macro HSM
Focus Point
F/5.0
Brightness 114
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/5.0
Brightness 161
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Around Center
F/5.0
Brightness 92
(Exactly Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Border (Left)
F/5.0
Brightness 107
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Between Center and Right Border
F/5.0
Brightness 165
(Almost Same)
Sony 35mm DT F/1.8 SAM
Focus Point
F/5.0
Brightness 104
(Almost Same)
Sony 35mm DT F/1.8 SAM
Center
F/5.0
Brightness 154
(Almost Same)
Sony 35mm DT F/1.8 SAM
Around Center
F/5.0
Brightness 92
(Exactly Same)
Sony 35mm DT F/1.8 SAM
Border (Left)
F/5.0
Brightness 110
(Almost Same)
Sony 35mm DT F/1.8 SAM
Between Center and Right Border
F/5.0
Brightness 155
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 4  
Photo_716Sigma 17-70 F/2.8-4 DS Macro HSM  
against
Photo_712 Sony 35mm DT F/1.8 SAM
F9.0 1/20 100 35mm.    
  F9.0 1/40100 35mm.  
100% (1:1) Crop Samples
Login or Register to display 5 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/9.0 vs. Sony 35mm DT F/1.8 SAM F/9.0 for locations Focus Point, Center, Around Center, Border (Left), Between Center and Right Border
  EXIF  
 
  Comparison Photo # 5  
Photo_715Sigma 17-70 F/2.8-4 DS Macro HSM  
against
Photo_714 Sony 35mm DT F/1.8 SAM
F16.0 1/6 100 35mm.    
  F16.0 1/13100 35mm.  
100% (1:1) Crop Samples
Login or Register to display 5 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/16.0 vs. Sony 35mm DT F/1.8 SAM F/16.0 for locations Focus Point, Center, Around Center, Border (Left), Between Center and Right Border
  EXIF  
 
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Sharpness at 35mm.
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Sharpness at 35mm.
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Sharpness at 35mm.
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Sharpness at 35mm.
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