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  Comparison # 2303 
 
Lens Sharpness Comparison

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
 
Comparison by Sinan Ozturk   
  
  
  Comparison Photo # 1  
Photo_4526Tamron 17-50 F/2.8  
against
Photo_4542 Sigma 17-70 F/2.8-4 DS Macro HSM
F2.8 1/320 100 50mm.    
  F4.0 1/160100 50mm.  
Photo by Sinan Ozturk  Photo by Sinan Ozturk 
100% (1:1) Crop Samples
Tamron 17-50 F/2.8
Center
F/2.8
Brightness 118
(Almost Same)
Tamron 17-50 F/2.8
Between Center and Left Border
F/2.8
Brightness 93
(Almost Same)
Tamron 17-50 F/2.8
vignetting
F/2.8
Brightness 188
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/4.0
Brightness 123
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Between Center and Left Border
F/4.0
Brightness 95
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
vignetting
F/4.0
Brightness 189
(Almost Same)
Display crops in Black & White
  EXIF  
 
  Comparison Photo # 2  
Photo_4527Tamron 17-50 F/2.8  
against
Photo_4542 Sigma 17-70 F/2.8-4 DS Macro HSM
F3.5 1/200 100 50mm.    
  F4.0 1/160100 50mm.  
100% (1:1) Crop Samples
Tamron 17-50 F/2.8
Center
F/3.5
Brightness 127
(Almost Same)
Tamron 17-50 F/2.8
Between Center and Left Border
F/3.5
Brightness 107
5% Brighter
Tamron 17-50 F/2.8
vignetting
F/3.5
Brightness 211
9% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/4.0
Brightness 123
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Between Center and Left Border
F/4.0
Brightness 95
5% Darker
Sigma 17-70 F/2.8-4 DS Macro HSM
vignetting
F/4.0
Brightness 189
9% Darker
Display crops in Black & White
  EXIF  
 
  Comparison Photo # 3  
Photo_4528Tamron 17-50 F/2.8  
against
Photo_4542 Sigma 17-70 F/2.8-4 DS Macro HSM
F4.0 1/160 100 50mm.    
  F4.0 1/160100 50mm.  
100% (1:1) Crop Samples
Tamron 17-50 F/2.8
Center
F/4.0
Brightness 137
6% Brighter
Tamron 17-50 F/2.8
Between Center and Left Border
F/4.0
Brightness 117
9% Brighter
Tamron 17-50 F/2.8
vignetting
F/4.0
Brightness 222
13% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/4.0
Brightness 123
6% Darker
Sigma 17-70 F/2.8-4 DS Macro HSM
Between Center and Left Border
F/4.0
Brightness 95
9% Darker
Sigma 17-70 F/2.8-4 DS Macro HSM
vignetting
F/4.0
Brightness 189
13% Darker
Display crops in Black & White
  EXIF  
 
  Comparison Photo # 4  
Photo_4529Tamron 17-50 F/2.8  
against
Photo_4543 Sigma 17-70 F/2.8-4 DS Macro HSM
F4.5 1/125 100 50mm.    
  F4.5 1/125100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 3 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, Between Center and Left Border, vignetting
  EXIF  
 
  Comparison Photo # 5  
Photo_4530Tamron 17-50 F/2.8  
against
Photo_4544 Sigma 17-70 F/2.8-4 DS Macro HSM
F5.0 1/100 100 50mm.    
  F5.0 1/100100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 3 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, Between Center and Left Border, vignetting
  EXIF  
 
  Comparison Photo # 6  
Photo_4531Tamron 17-50 F/2.8  
against
Photo_4545 Sigma 17-70 F/2.8-4 DS Macro HSM
F5.6 1/80 100 50mm.    
  F5.6 1/80100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 3 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, Between Center and Left Border, vignetting
  EXIF  
 
  Comparison Photo # 7  
Photo_4532Tamron 17-50 F/2.8  
against
Photo_4546 Sigma 17-70 F/2.8-4 DS Macro HSM
F6.3 1/60 100 50mm.    
  F6.3 1/60100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 3 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, Between Center and Left Border, vignetting
  EXIF  
 
  Comparison Photo # 8  
Photo_4533Tamron 17-50 F/2.8  
against
Photo_4547 Sigma 17-70 F/2.8-4 DS Macro HSM
F7.1 1/50 100 50mm.    
  F7.1 1/50100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 3 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, Between Center and Left Border, vignetting
  EXIF  
 
  Comparison Photo # 9  
Photo_4534Tamron 17-50 F/2.8  
against
Photo_4548 Sigma 17-70 F/2.8-4 DS Macro HSM
F8.0 1/40 100 50mm.    
  F8.0 1/40100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 3 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, Between Center and Left Border, vignetting
  EXIF  
 
  Comparison Photo # 10  
Photo_4535Tamron 17-50 F/2.8  
against
Photo_4549 Sigma 17-70 F/2.8-4 DS Macro HSM
F10.0 1/25 100 50mm.    
  F10.0 1/25100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 3 crops from Tamron 17-50 F/2.8 F/10.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/10.0 for locations Center, Between Center and Left Border, vignetting
  EXIF  
 
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Sharpness at 50mm.
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Sharpness at 50mm.
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Minolta 28-70 2.8 vs. Sony 16-105
Sharpness at 50mm.
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Minolta 28-70 2.8 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
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Sharpness at 50mm.
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  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
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
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
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 35mm.
Tested Apertures F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Minolta 28-105
Sharpness at 35mm.
Tested Apertures F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Sony 35mm 1.8
Sharpness at 35mm.
Tested Apertures F1.8/F3.5, F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Cosina 19-35
Sharpness at 35mm.
Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 16-50 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
  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
Tamron 17-50 vs. Minolta 35-105mm.
Sharpness at 35mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 17-50 vs. Minolta 28-105
Sharpness at 35mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Tamron 17-50 vs. Sony 35mm 1.8
Sharpness at 35mm.
Tested Apertures F1.8/F2.8, F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Cosina 19-35 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 16-50 vs. Tamron 17-50
Sharpness at 35mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Sony 16-105 vs. Tamron 17-50
Sharpness at 35mm.
Tested Apertures F2.8/F5, F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8