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  Comparison # 14 
 
Lens Sharpness Comparison

Sigma 17-70 vs. Sony 55-300

Sharpness at 70mm.
Tested Apertures F4/F4.5, F5.6, F8
 
Comparison by Sinan Ozturk   
Shots taken on a tripod with remote control. In the first shot Sony 55-300 is F4.5, Sigma 17-70 is F4 because these are the lenses maximum apertures at this focal length. In other photos they are both at F5,6 and F8             [Review by Sinan Ozturk]
  
  
  Comparison Photo # 1  
Photo_57Sigma 17-70 F/2.8-4 DS Macro HSM  
against
Photo_54 Sony 55-300 DT F/4.5-5.6 SAM
F4.0 1/1250 100 70mm.    
  F4.5 1/1600100 60mm.  
Photo by Sinan Ozturk  Photo by Sinan Ozturk 
100% (1:1) Crop Samples
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/4.0
Brightness 104
13% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Center 2
F/4.0
Brightness 118
12% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Top Border
F/4.0
Brightness 159
12% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Corner
F/4.0
Brightness 144
(Almost Same)
Sony 55-300 DT F/4.5-5.6 SAM
Center
F/4.5
Brightness 71
13% Darker
Sony 55-300 DT F/4.5-5.6 SAM
Center 2
F/4.5
Brightness 87
12% Darker
Sony 55-300 DT F/4.5-5.6 SAM
Top Border
F/4.5
Brightness 128
12% Darker
Sony 55-300 DT F/4.5-5.6 SAM
Corner
F/4.5
Brightness 148
(Almost Same)
Display crops in Black & White
  EXIF  
 
  Comparison Photo # 2  
Photo_58Sigma 17-70 F/2.8-4 DS Macro HSM  
against
Photo_53 Sony 55-300 DT F/4.5-5.6 SAM
F5.6 1/640 100 70mm.    
  F5.6 1/1000100 60mm.  
100% (1:1) Crop Samples
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/5.6
Brightness 111
12% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Center 2
F/5.6
Brightness 130
13% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Top Border
F/5.6
Brightness 172
11% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Corner
F/5.6
Brightness 157
(Almost Same)
Sony 55-300 DT F/4.5-5.6 SAM
Center
F/5.6
Brightness 81
12% Darker
Sony 55-300 DT F/4.5-5.6 SAM
Center 2
F/5.6
Brightness 96
13% Darker
Sony 55-300 DT F/4.5-5.6 SAM
Top Border
F/5.6
Brightness 142
11% Darker
Sony 55-300 DT F/4.5-5.6 SAM
Corner
F/5.6
Brightness 164
(Almost Same)
Display crops in Black & White
  EXIF  
 
  Comparison Photo # 3  
Photo_56Sigma 17-70 F/2.8-4 DS Macro HSM  
against
Photo_55 Sony 55-300 DT F/4.5-5.6 SAM
F8.0 1/320 100 70mm.    
  F8.0 1/500100 60mm.  
100% (1:1) Crop Samples
Sigma 17-70 F/2.8-4 DS Macro HSM
Center
F/8.0
Brightness 118
9% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Center 2
F/8.0
Brightness 138
11% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Top Border
F/8.0
Brightness 178
10% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM
Corner
F/8.0
Brightness 162
(Almost Same)
Sony 55-300 DT F/4.5-5.6 SAM
Center
F/8.0
Brightness 94
9% Darker
Sony 55-300 DT F/4.5-5.6 SAM
Center 2
F/8.0
Brightness 110
11% Darker
Sony 55-300 DT F/4.5-5.6 SAM
Top Border
F/8.0
Brightness 152
10% Darker
Sony 55-300 DT F/4.5-5.6 SAM
Corner
F/8.0
Brightness 173
(Almost Same)
Display crops in Black & White
  EXIF  
 
Custom Comparison
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  Other Sigma 17-70 F/2.8-4 DS Macro HSM vs. Sony 55-300 DT F/4.5-5.6 SAM Comparisons  
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
Sigma 17-70 vs. Sony 55-300
Sharpness at 60mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
Sigma 17-70 vs. Sony 55-300
Sharpness at 55mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Sigma 17-70 vs. Sony 55-300
Sharpness at 55mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
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
Sigma 17-70 vs. Sony 55-300
Sharpness at 60mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
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
Sony 55-300 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F4/F4.5, F5.6, F6.3, F8, F10
Sony 55-300 vs. Sigma 17-70
Sharpness at 60mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
Sony 55-300 vs. Sigma 17-70
Sharpness at 55mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, 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
Sony 55-300 vs. Sigma 17-70
Sharpness at 75mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F8
Sony 55-300 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F4/F4.5, F5.6, F6.3, F8, F10
Sony 55-300 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F8
Sony 55-300 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1
Sigma 17-70 vs. Sony 55-300
Sharpness at 70-300mm.
Tested Apertures F4/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
Sony 55-300 vs. Sigma 17-70
Sharpness at 70mm.
Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1
Sony 55-300 vs. Sigma 17-70
Sharpness at 60mm.
Tested Apertures F4/F5, F4.5/F5, F6.3
Sigma 17-70 vs. Sony 55-300
at 70mm.
  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
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