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  Comparison # 2391 
 
Lens Sharpness Comparison

Sigma 17-70 vs. Minolta 28-70 2.8

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
 
Comparison by Sinan Ozturk   
  
  
  Comparison Photo # 1  
Photo_4728Minolta 28-70mm. F2.8  
against
Photo_4764 Sigma 17-70 F/2.8-4 DS Macro HSM
F2.8 1/500 100 50mm.    
  F4.0 1/200100 50mm.  
Photo by Sinan Ozturk  Photo by Sinan Ozturk 
100% (1:1) Crop Samples
Minolta 28-70mm. F2.8
Center
F/2.8
Brightness 140
(Almost Same)
Minolta 28-70mm. F2.8
Border (Left)
F/2.8
Brightness 119
(Almost Same)
Minolta 28-70mm. F2.8
Corner (Bottom Right)
F/2.8
Brightness 48
(Exactly Same)
Minolta 28-70mm. F2.8
Around Center
F/2.8
Brightness 109
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/4.0
Brightness 151
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Border (Left)
F/4.0
Brightness 122
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Corner (Bottom Right)
F/4.0
Brightness 48
(Exactly Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Around Center
F/4.0
Brightness 121
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 2  
Photo_4729Minolta 28-70mm. F2.8  
against
Photo_4764 Sigma 17-70 F/2.8-4 DS Macro HSM
F3.5 1/320 100 50mm.    
  F4.0 1/200100 50mm.  
100% (1:1) Crop Samples
Minolta 28-70mm. F2.8
Center
F/3.5
Brightness 143
(Almost Same)
Minolta 28-70mm. F2.8
Border (Left)
F/3.5
Brightness 123
(Almost Same)
Minolta 28-70mm. F2.8
Corner (Bottom Right)
F/3.5
Brightness 53
(Almost Same)
Minolta 28-70mm. F2.8
Around Center
F/3.5
Brightness 111
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/4.0
Brightness 151
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Border (Left)
F/4.0
Brightness 122
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Corner (Bottom Right)
F/4.0
Brightness 48
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Around Center
F/4.0
Brightness 121
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 3  
Photo_4730Minolta 28-70mm. F2.8  
against
Photo_4764 Sigma 17-70 F/2.8-4 DS Macro HSM
F4.0 1/250 100 50mm.    
  F4.0 1/200100 50mm.  
100% (1:1) Crop Samples
Minolta 28-70mm. F2.8
Center
F/4.0
Brightness 147
(Almost Same)
Minolta 28-70mm. F2.8
Border (Left)
F/4.0
Brightness 127
(Almost Same)
Minolta 28-70mm. F2.8
Corner (Bottom Right)
F/4.0
Brightness 55
(Almost Same)
Minolta 28-70mm. F2.8
Around Center
F/4.0
Brightness 115
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/4.0
Brightness 151
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Border (Left)
F/4.0
Brightness 122
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Corner (Bottom Right)
F/4.0
Brightness 48
(Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM
Around Center
F/4.0
Brightness 121
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 4  
Photo_4731Minolta 28-70mm. F2.8  
against
Photo_4765 Sigma 17-70 F/2.8-4 DS Macro HSM
F4.5 1/160 100 50mm.    
  F4.5 1/160100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 4 crops from Minolta 28-70mm. F2.8 F/4.5 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/4.5 for locations Center, Border (Left), Corner (Bottom Right), Around Center
  EXIF  
 
  Comparison Photo # 5  
Photo_4732Minolta 28-70mm. F2.8  
against
Photo_4766 Sigma 17-70 F/2.8-4 DS Macro HSM
F5.0 1/160 100 50mm.    
  F5.0 1/125100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 4 crops from Minolta 28-70mm. F2.8 F/5.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/5.0 for locations Center, Border (Left), Corner (Bottom Right), Around Center
  EXIF  
 
  Comparison Photo # 6  
Photo_4733Minolta 28-70mm. F2.8  
against
Photo_4767 Sigma 17-70 F/2.8-4 DS Macro HSM
F5.6 1/125 100 50mm.    
  F5.6 1/100100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 4 crops from Minolta 28-70mm. F2.8 F/5.6 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/5.6 for locations Center, Border (Left), Corner (Bottom Right), Around Center
  EXIF  
 
  Comparison Photo # 7  
Photo_4734Minolta 28-70mm. F2.8  
against
Photo_4768 Sigma 17-70 F/2.8-4 DS Macro HSM
F6.3 1/80 100 50mm.    
  F6.3 1/80100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 4 crops from Minolta 28-70mm. F2.8 F/6.3 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/6.3 for locations Center, Border (Left), Corner (Bottom Right), Around Center
  EXIF  
 
  Comparison Photo # 8  
Photo_4735Minolta 28-70mm. F2.8  
against
Photo_4771 Sigma 17-70 F/2.8-4 DS Macro HSM
F7.1 1/80 100 50mm.    
  F7.1 1/60100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 4 crops from Minolta 28-70mm. F2.8 F/7.1 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/7.1 for locations Center, Border (Left), Corner (Bottom Right), Around Center
  EXIF  
 
  Comparison Photo # 9  
Photo_4736Minolta 28-70mm. F2.8  
against
Photo_4772 Sigma 17-70 F/2.8-4 DS Macro HSM
F8.0 1/60 100 50mm.    
  F8.0 1/50100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 4 crops from Minolta 28-70mm. F2.8 F/8.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/8.0 for locations Center, Border (Left), Corner (Bottom Right), Around Center
  EXIF  
 
  Comparison Photo # 10  
Photo_4737Minolta 28-70mm. F2.8  
against
Photo_4773 Sigma 17-70 F/2.8-4 DS Macro HSM
F9.0 1/40 100 50mm.    
  F9.0 1/40100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 4 crops from Minolta 28-70mm. F2.8 F/9.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/9.0 for locations Center, Border (Left), Corner (Bottom Right), Around Center
  EXIF  
 
  Comparison Photo # 11  
Photo_4738Minolta 28-70mm. F2.8  
against
Photo_4774 Sigma 17-70 F/2.8-4 DS Macro HSM
F10.0 1/40 100 50mm.    
  F10.0 1/30100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 4 crops from Minolta 28-70mm. F2.8 F/10.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/10.0 for locations Center, Border (Left), Corner (Bottom Right), Around Center
  EXIF  
 
  Comparison Photo # 12  
Photo_4739Minolta 28-70mm. F2.8  
against
Photo_4775 Sigma 17-70 F/2.8-4 DS Macro HSM
F11.0 1/30 100 50mm.    
  F11.0 1/25100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 4 crops from Minolta 28-70mm. F2.8 F/11.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/11.0 for locations Center, Border (Left), Corner (Bottom Right), Around Center
  EXIF  
 
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Minolta 28-70 2.8 vs. Sony 18-55
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Minolta 28-70 2.8 vs. Tamron 18-200
Sharpness at 50mm.
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Minolta 28-70 2.8 vs. Sony 16-50
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. Minolta 50mm 1.4
Sharpness at 50mm.
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Sharpness at 50mm.
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Tokina 28-70 2.8 vs. Sony 18-55
Sharpness at 50mm.
Tested Apertures F2.8/F5.6, F3.5/F5.6, F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tokina 28-70 2.8 vs. Tamron 17-50
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tokina 28-70 2.8 vs. Tamron 18-200
Sharpness at 50mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tokina 28-70 2.8 vs. Sony 16-50
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tokina 28-70 2.8 vs. Sony 16-105
Sharpness at 50mm.
Tested Apertures F2.8/F5, F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tokina 28-70 2.8 vs. Minolta 50mm 1.4
Sharpness at 50mm.
Tested Apertures F1.4/F2.8, F1.6/F2.8, F1.7/F2.8, F2/F2.8, F2.2/F2.8, F2.5/F2.8, F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tokina 28-70 2.8 vs. Minolta 28-70 2.8
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 50mm 2.8 vs. Minolta 35-105mm.
Sharpness at 50mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 50mm 2.8 vs. Sony 18-55
Sharpness at 50mm.
Tested Apertures F2.8/F5.6, F3.5/F5.6, F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 50mm 2.8 vs. Tamron 17-50
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 50mm 2.8 vs. Tamron 18-200
Sharpness at 50mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 50mm 2.8 vs. Sony 16-50
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 50mm 2.8 vs. Sony 16-105
Sharpness at 50mm.
Tested Apertures F2.8/F5, F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 50mm 2.8 vs. Minolta 50mm 1.4
Sharpness at 50mm.
Tested Apertures F1.4/F2.8, F1.6/F2.8, F1.7/F2.8, F2/F2.8, F2.2/F2.8, F2.5/F2.8, F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 50mm 2.8 vs. Minolta 28-70 2.8
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 50mm 2.8 vs. Tokina 28-70 2.8
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 17-70 vs. Minolta 35-105mm.
Sharpness at 50mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F6.3, F7.1, F7.1, F8, F9, F10, F11
Sigma 17-70 vs. Sony 18-55
Sharpness at 50mm.
Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F6.3, F7.1, 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
Sigma 17-70 vs. Tamron 18-200
Sharpness at 50mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F6.3, F7.1, F7.1, F8, F9, F10, F11
Sigma 17-70 vs. Sony 16-50
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
Sigma 17-70 vs. Sony 16-105
Sharpness at 50mm.
Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F6.3, F7.1, F7.1, F8, F9, F10, F11
Sigma 17-70 vs. Minolta 50mm 1.4
Sharpness at 50mm.
Tested Apertures F1.4/F4, F1.6/F4, F1.7/F4, F2/F4, F2.2/F4, F2.5/F4, F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 17-70 vs. Tokina 28-70 2.8
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
Sigma 17-70 vs. Sigma 50mm 2.8
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
CZ Jena Pancolar 50mm 1.8 vs. Minolta 35-105mm.
Sharpness at 50mm.
Tested Apertures F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1/F8, F8, F9, F10/F11, F11
CZ Jena Pancolar 50mm 1.8 vs. Sony 18-55
Sharpness at 50mm.
Tested Apertures F1.8/F5.6, F2.8/F5.6, F4/F5.6, F5.6, F6.3, F8, F9, F11
CZ Jena Pancolar 50mm 1.8 vs. Tamron 17-50
Sharpness at 50mm.
Tested Apertures F2.8, F3.5/F4, F4, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1/F8, F8, F9, F10/F11, F11
CZ Jena Pancolar 50mm 1.8 vs. Tamron 18-200
Sharpness at 50mm.
Tested Apertures F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1/F8, F8, F9, F10/F11, F11
CZ Jena Pancolar 50mm 1.8 vs. Sony 16-50
Sharpness at 50mm.
Tested Apertures F2.8, F3.5/F4, F4, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1/F8, F8, F9, F10/F11, F11
CZ Jena Pancolar 50mm 1.8 vs. Sony 16-105
Sharpness at 50mm.
Tested Apertures F1.8/F5, F2.8/F5, F4/F5, F5.6, F6.3, F8, F9, F11
CZ Jena Pancolar 50mm 1.8 vs. Minolta 50mm 1.4
Sharpness at 50mm.
Tested Apertures F1.4/F1.8, F1.6/F1.8, F1.7/F1.8, F2/F2.8, F2.2/F2.8, F2.5/F2.8, F2.8, F3.5/F4, F4, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1/F8, F8, F9, F10/F11, F11
CZ Jena Pancolar 50mm 1.8 vs. Minolta 28-70 2.8
Sharpness at 50mm.
Tested Apertures F2.8, F3.5/F4, F4, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1/F8, F8, F9, F10/F11, F11
CZ Jena Pancolar 50mm 1.8 vs. Tokina 28-70 2.8
Sharpness at 50mm.
Tested Apertures F2.8, F3.5/F4, F4, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1/F8, F8, F9, F10/F11, F11
CZ Jena Pancolar 50mm 1.8 vs. Sigma 50mm 2.8
Sharpness at 50mm.
Tested Apertures F2.8, F3.5/F4, F4, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1/F8, F8, F9, F10/F11, F11
CZ Jena Pancolar 50mm 1.8 vs. Sigma 17-70
Sharpness at 50mm.
Tested Apertures F4, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F6.3, F7.1/F8, F7.1/F8, F8, F9, F10/F11, F11
  

 

  Other Sigma 17-70 F/2.8-4 DS Macro HSM vs. Minolta 28-70mm. F2.8 Comparisons  
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
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
Minolta 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
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
Minolta 28-70 2.8 vs. Sigma 17-70
Sharpness at 60mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
Minolta 28-70 2.8 vs. Sigma 17-70
Sharpness at 55mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Minolta 28-70 2.8 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. Minolta 28-70 2.8
Sharpness at 70mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F8, F10
Minolta 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, F8, F11
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
Sigma 17-70 vs. Minolta 28-70 2.8
Sharpness at 60mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F8
Sigma 17-70 vs. Minolta 28-70 2.8
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. Minolta 28-70 2.8
Sharpness at 28mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3
Sigma 17-70 vs. Minolta 28-70 2.8
Sharpness at 70mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13
Sigma 17-70 vs. Minolta 28-70 2.8
Sharpness at 35mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
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
Minolta 28-70 2.8G 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. Minolta 28-70 2.8G
Sharpness at 55mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Sigma 17-70 vs. Minolta 28-70 2.8G
Sharpness at 70mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
  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
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. 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
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
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. 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. 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 Minolta 28-70mm. F2.8  
Minolta 28-70 2.8 (on Full Frame Camera)
at 70mm.
Tested Apertures Between F2.8 to F13.0
Minolta 28-70 2.8 vs. Minolta 35-105mm.
Sharpness at 60mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13, F16
Minolta 28-70 2.8 vs. Carl Zeiss 24-70
Sharpness at 60mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13, F16
Minolta 28-70 2.8 vs. Carl Zeiss 24-70
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13, F16
Minolta 50mm. 2.8 vs. Minolta 28-70 2.8
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13, F16
Minolta 35-105mm. vs. Minolta 28-70 2.8
Sharpness at 50mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13, F16
Carl Zeiss 24-70 vs. Minolta 28-70 2.8
Sharpness at 70mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13, F16
Minolta 35-105mm. vs. Minolta 28-70 2.8
Sharpness at 70mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13, F16
Carl Zeiss 24-70 vs. Minolta 28-70 2.8
Sharpness at 28mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F8, F10, F13, F16
Minolta 28-70 2.8 vs. Sony 16-105
Sharpness at 70mm.
Tested Apertures F2.8/F5.6, F3.5/F5.6, F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
Minolta 28-70 2.8 vs. Minolta 28-105
Sharpness at 70mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Minolta 28-70 2.8 vs. Minolta 35-105mm.
Sharpness at 70mm.
Tested Apertures F2.8/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
Minolta 28-70 2.8 vs. Tamron 18-200
Sharpness at 70mm.
Tested Apertures F2.8/F5.6, F3.5/F5.6, F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
Tokina 28-70 2.8 vs. Minolta 28-70 2.8
Sharpness at 70mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Minolta 28-70 2.8 vs. Sony 16-50
Sharpness at 28mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Minolta 28-70 2.8 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
Minolta 28-70 2.8 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
Sony 16-105 vs. Minolta 28-70 2.8
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
Sony 18-55 vs. Minolta 28-70 2.8
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
Cosina 19-35 vs. Minolta 28-70 2.8
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. Minolta 28-70 2.8
Sharpness at 28mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Minolta 28-105 vs. Minolta 28-70 2.8
Sharpness at 28mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1