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  Comparison # 2759 
  
Lens Sharpness Comparison

Sigma 17-70 vs. Tamron 17-50
Sharpness at 35mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
 
Comparison by Sinan Ozturk   
  
  
  Comparison Photo # 1  
Photo_5272Tamron 17-50 F/2.8  
against
Photo_5287 Sigma 17-70 F/2.8-4 DS Macro HSM
F2.8 1/125 100 35mm.    
  F3.5 1/80100 35mm.  
Photo by Sinan Ozturk  Photo by Sinan Ozturk 
100% (1:1) Crop Samples
Tamron 17-50 F/2.8
Center
F/2.8
Brightness 115
(Almost Same)
Tamron 17-50 F/2.8
Around Center
F/2.8
Brightness 112
(Exactly Same)
Tamron 17-50 F/2.8
Corner (Top Left)
F/2.8
Brightness 41
(Almost Same)
Tamron 17-50 F/2.8
Border (Bottom)
F/2.8
Brightness 99
(Exactly Same)
Tamron 17-50 F/2.8
vignetting
F/2.8
Brightness 210
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/3.5
Brightness 113
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Around Center
F/3.5
Brightness 112
(Exactly Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Corner (Top Left)
F/3.5
Brightness 43
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Border (Bottom)
F/3.5
Brightness 99
(Exactly Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
vignetting
F/3.5
Brightness 208
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 2  
Photo_5273Tamron 17-50 F/2.8  
against
Photo_5287 Sigma 17-70 F/2.8-4 DS Macro HSM
F3.5 1/80 100 35mm.    
  F3.5 1/80100 35mm.  
100% (1:1) Crop Samples
Tamron 17-50 F/2.8
Center
F/3.5
Brightness 121
(Almost Same)
Tamron 17-50 F/2.8
Around Center
F/3.5
Brightness 117
(Almost Same)
Tamron 17-50 F/2.8
Corner (Top Left)
F/3.5
Brightness 49
(Almost Same)
Tamron 17-50 F/2.8
Border (Bottom)
F/3.5
Brightness 101
(Almost Same)
Tamron 17-50 F/2.8
vignetting
F/3.5
Brightness 226
7% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/3.5
Brightness 113
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Around Center
F/3.5
Brightness 112
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Corner (Top Left)
F/3.5
Brightness 43
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Border (Bottom)
F/3.5
Brightness 99
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
vignetting
F/3.5
Brightness 208
7% Darker
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 3  
Photo_5274Tamron 17-50 F/2.8  
against
Photo_5288 Sigma 17-70 F/2.8-4 DS Macro HSM
F4.0 1/60 100 35mm.    
  F4.0 1/60100 35mm.  
100% (1:1) Crop Samples
Tamron 17-50 F/2.8
Center
F/4.0
Brightness 124
6% Brighter
Tamron 17-50 F/2.8
Around Center
F/4.0
Brightness 120
6% Brighter
Tamron 17-50 F/2.8
Corner (Top Left)
F/4.0
Brightness 52
(Almost Same)
Tamron 17-50 F/2.8
Border (Bottom)
F/4.0
Brightness 103
(Almost Same)
Tamron 17-50 F/2.8
vignetting
F/4.0
Brightness 231
7% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/4.0
Brightness 109
6% Darker
Sigma 17-70 F/2.8-4 DS Macro HSM
Around Center
F/4.0
Brightness 105
6% Darker
Sigma 17-70 F/2.8-4 DS Macro HSM
Corner (Top Left)
F/4.0
Brightness 41
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Border (Bottom)
F/4.0
Brightness 96
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
vignetting
F/4.0
Brightness 215
7% Darker
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 4  
Photo_5275Tamron 17-50 F/2.8  
against
Photo_5289 Sigma 17-70 F/2.8-4 DS Macro HSM
F4.5 1/50 100 35mm.    
  F4.5 1/50100 35mm.  
100% (1:1) Crop Samples
Login or Register to display 5 crops from Tamron 17-50 F/2.8 F/4.5 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/4.5 for locations Center, Around Center, Corner (Top Left), Border (Bottom), vignetting
  EXIF  
 
  Comparison Photo # 5  
Photo_5276Tamron 17-50 F/2.8  
against
Photo_5290 Sigma 17-70 F/2.8-4 DS Macro HSM
F5.0 1/40 100 35mm.    
  F5.0 1/40100 35mm.  
100% (1:1) Crop Samples
Login or Register to display 5 crops from Tamron 17-50 F/2.8 F/5.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/5.0 for locations Center, Around Center, Corner (Top Left), Border (Bottom), vignetting
  EXIF  
 
  Comparison Photo # 6  
Photo_5277Tamron 17-50 F/2.8  
against
Photo_5291 Sigma 17-70 F/2.8-4 DS Macro HSM
F5.6 1/30 100 35mm.    
  F5.6 1/30100 35mm.  
100% (1:1) Crop Samples
Login or Register to display 5 crops from Tamron 17-50 F/2.8 F/5.6 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/5.6 for locations Center, Around Center, Corner (Top Left), Border (Bottom), vignetting
  EXIF  
 
  Comparison Photo # 7  
Photo_5278Tamron 17-50 F/2.8  
against
Photo_5292 Sigma 17-70 F/2.8-4 DS Macro HSM
F6.3 1/25 100 35mm.    
  F6.3 1/20100 35mm.  
100% (1:1) Crop Samples
Login or Register to display 5 crops from Tamron 17-50 F/2.8 F/6.3 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/6.3 for locations Center, Around Center, Corner (Top Left), Border (Bottom), vignetting
  EXIF  
 
  Comparison Photo # 8  
Photo_5279Tamron 17-50 F/2.8  
against
Photo_5293 Sigma 17-70 F/2.8-4 DS Macro HSM
F7.1 1/20 100 35mm.    
  F7.1 1/20100 35mm.  
100% (1:1) Crop Samples
Login or Register to display 5 crops from Tamron 17-50 F/2.8 F/7.1 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/7.1 for locations Center, Around Center, Corner (Top Left), Border (Bottom), vignetting
  EXIF  
 
  Comparison Photo # 9  
Photo_5280Tamron 17-50 F/2.8  
against
Photo_5294 Sigma 17-70 F/2.8-4 DS Macro HSM
F8.0 1/15 100 35mm.    
  F8.0 1/15100 35mm.  
100% (1:1) Crop Samples
Login or Register to display 5 crops from Tamron 17-50 F/2.8 F/8.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/8.0 for locations Center, Around Center, Corner (Top Left), Border (Bottom), vignetting
  EXIF  
 
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Tokina 28-70 2.8 vs. Cosina 19-35
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Tokina 28-70 2.8 vs. Sigma 17-70
Sharpness at 35mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Tokina 28-70 2.8 vs. Sony 16-50
Sharpness at 35mm.
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Tokina 28-70 2.8 vs. Sony 16-105
Sharpness at 35mm.
Tested Apertures F2.8/F5, F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
Tokina 28-70 2.8 vs. Minolta 28-70 2.8
Sharpness at 35mm.
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Sony 18-55 vs. Minolta 35-105mm.
Sharpness at 35mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 18-55 vs. Minolta 28-105
Sharpness at 35mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 18-55 vs. Sony 35mm 1.8
Sharpness at 35mm.
Tested Apertures F1.8/F4.5, F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 18-55 vs. Tamron 17-50
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 18-55 vs. Cosina 19-35
Sharpness at 35mm.
Tested Apertures F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 18-55 vs. Sigma 17-70
Sharpness at 35mm.
Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 18-55 vs. Sony 16-50
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 18-55 vs. Sony 16-105
Sharpness at 35mm.
Tested Apertures F4.5/F5, F5, F5.6, F6.3, F7.1, F8
Sony 18-55 vs. Minolta 28-70 2.8
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 18-55 vs. Tokina 28-70 2.8
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Minolta 35-105mm.
Sharpness at 35mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Minolta 28-105
Sharpness at 35mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Sony 35mm 1.8
Sharpness at 35mm.
Tested Apertures F1.8/F4.5, F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Tamron 17-50
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Cosina 19-35
Sharpness at 35mm.
Tested Apertures F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Sigma 17-70
Sharpness at 35mm.
Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Sony 16-50
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Sony 16-105
Sharpness at 35mm.
Tested Apertures F4.5/F5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Minolta 28-70 2.8
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Tokina 28-70 2.8
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 18-200 vs. Sony 18-55
Sharpness at 35mm.
Tested Apertures F4.5, F5, F5.6, F6.3, F7.1, F8
  

 

  Other Sigma 17-70 F/2.8-4 DS Macro HSM vs. Tamron 17-50 F/2.8 Comparisons  
Tamron 17-50 vs. Sigma 17-70
Sharpness at 28mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Tamron 17-50 vs. Sigma 17-70
Sharpness at 35mm.
Tested Apertures F2.8/F3.5, F3.2/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 17-70 vs. Tamron 17-50
Sharpness at 50mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tamron 17-50 vs. Sigma 17-70
Sharpness at 35mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F8, F11
Sigma 17-70 vs. Tamron 17-50
Sharpness at 50mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
Tamron 17-50 vs. Sigma 17-70
Sharpness at 35mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Tamron 17-50
Sharpness at 28mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3
Sigma 17-70 vs. Tamron 17-50
Sharpness at 35mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
Tamron 17-50 vs. Sigma 17-70
Sharpness at 50mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
Tamron 17-50 vs. Sigma 17-70
Sharpness at 50mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Tamron 17-50
Sharpness at 35mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Tamron 17-50
Sharpness at 28mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F6.3, F8, F10
Tamron 17-50 vs. Sigma 17-70
Sharpness at 50mm.
Tested Apertures F2.8/F4, F4, F5, F5.6, F6.3, F8, F10
Tamron 17-50 vs. Sigma 17-70
Sharpness at 18mm.
Tested Apertures F2.8, F6.3, F8, F16
Sigma 17-70 vs. Tamron 17-50
Sharpness at 35mm.
Tested Apertures F2.8/F3.5, F4, F5.6, F6.3, F8
Sigma 17-70 vs. Tamron 17-50
Sharpness at 28mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F8
Sigma 17-70 vs. Tamron 17-50
Sharpness at 24mm.
Tested Apertures F2.8/F3.2, F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3, F8
Tamron 17-50 vs. Sigma 17-70
Sharpness at 24mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 17-50 vs. Sigma 17-70
Sharpness at 17-18mm.
Tested Apertures F2.8, F3.5, F4.5, F5.6, F6.3
  Other Comparisons of Sigma 17-70 F/2.8-4 DS Macro HSM  
Sigma 17-70 vs. Sony 16-105
Sharpness at 70mm.
Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Minolta 28-105
Sharpness at 70mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Minolta 35-105mm.
Sharpness at 70mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Tamron 18-200
Sharpness at 70mm.
Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
Minolta 28-70 2.8 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Tokina 28-70 2.8 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Sony 16-50
Sharpness at 28mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Sigma 17-70 vs. Tamron 18-200
Sharpness at 28mm.
Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1
Sigma 17-70 vs. Tokina 28-70 2.8
Sharpness at 28mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Sigma 17-70 vs. Minolta 28-70 2.8
Sharpness at 28mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Sigma 17-70 vs. Sony 16-105
Sharpness at 28mm.
Tested Apertures F3.2/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1
Sony 18-55 vs. Sigma 17-70
Sharpness at 28mm.
Tested Apertures F3.2/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1
Cosina 19-35 vs. Sigma 17-70
Sharpness at 28mm.
Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1
Minolta 28-105 vs. Sigma 17-70
Sharpness at 28mm.
Tested Apertures F3.2/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Sigma 17-70 vs. Minolta 35-105mm.
Sharpness at 70mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sony 55-300 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sony 16-105 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tamron 18-200 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Minolta 28-70 2.8 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
  Other Comparisons of Tamron 17-50 F/2.8  
Tamron 17-50 vs. Sony 16-50
Sharpness at 28mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Tamron 17-50 vs. Tamron 18-200
Sharpness at 28mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1
Tamron 17-50 vs. Tokina 28-70 2.8
Sharpness at 28mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Tamron 17-50 vs. Minolta 28-70 2.8
Sharpness at 28mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Tamron 17-50 vs. Sony 16-105
Sharpness at 28mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1
Tamron 17-50 vs. Sony 18-55
Sharpness at 28mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1
Tamron 17-50 vs. Cosina 19-35
Sharpness at 28mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1
Minolta 28-105 vs. Tamron 17-50
Sharpness at 28mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
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