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  Comparison # 74 
 
Lens Sharpness Comparison

Sony 16-50 vs. Tamron 17-50

Sharpness at 50mm.
Tested Apertures F2.8, F4/F4.5, F8
 
Comparison by Sinan Ozturk   
At their widest aperture (F2.8), Tamron and Sony has a close sharpness performance for corners. However in the center Sony seems to have an edge. On the other hand, even if both lenses have vignetting in F2.8, Sony's vignetting is apperantly more obvious and lurkes more of the corners.

In the second photo they are stopped down and their performance comes very close. At this aperture Sony is definetely keeping some of its vignetting while Tamron significantly improves and better than Sony in vignetting. On the other hand Sony seems to have a little more contrast than Tamron at this stop. Their corner sharpness performans looks very similiar to me (if not exact). They are also quite sharp in the center but Sony seems to be just a tad sharper than Tamron. It might be looking sharper due to its strength in contrast though. None the less in my opinion they are still very close to each other.

In the third comparison lenses are now at F8. Sony's vignetting improved much better and nearly non existing at this aperture. Yet if you zoom very corners, Tamron seems still "brighter" so I believe very small percentage of Sony's corner vignetting is still lurking even in F8 but its not worth mentioning. Their corner sharpness performance are also nearly identical. Yet now Tamron seems to gain an edge regarding contrast so if you look really really deep, Tamron looks very slightly more sharp. This is so for both corners and center but in my opinion its more significant in the center.
            [Review by Sinan Ozturk]
  
  
  Comparison Photo # 1  
Photo_215Sony 16-50 DT F2.8 SAM  
against
Photo_214 Tamron 17-50 F/2.8
F2.8 1/500 100 50mm.    
  F2.8 1/400100 50mm.  
Photo by Sinan Ozturk  Photo by Sinan Ozturk 
100% (1:1) Crop Samples
Sony 16-50 DT F2.8 SAM
Focus Point
F/2.8
Brightness 79
(Almost Same)
Sony 16-50 DT F2.8 SAM
Center
F/2.8
Brightness 101
(Almost Same)
Sony 16-50 DT F2.8 SAM
Border (Top)
F/2.8
Brightness 190
(Almost Same)
Sony 16-50 DT F2.8 SAM
Corner (Bottom Right)
F/2.8
Brightness 138
(Almost Same)
Tamron 17-50 F/2.8
Focus Point
F/2.8
Brightness 81
(Almost Same)
Tamron 17-50 F/2.8
Center
F/2.8
Brightness 109
(Almost Same)
Tamron 17-50 F/2.8
Border (Top)
F/2.8
Brightness 193
(Almost Same)
Tamron 17-50 F/2.8
Corner (Bottom Right)
F/2.8
Brightness 133
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 2  
Photo_216Sony 16-50 DT F2.8 SAM  
against
Photo_213 Tamron 17-50 F/2.8
F4.0 1/250 100 50mm.    
  F4.5 1/160100 50mm.  
100% (1:1) Crop Samples
Sony 16-50 DT F2.8 SAM
Focus Point
F/4.0
Brightness 84
(Almost Same)
Sony 16-50 DT F2.8 SAM
Center
F/4.0
Brightness 104
6% Darker
Sony 16-50 DT F2.8 SAM
Border (Top)
F/4.0
Brightness 194
5% Darker
Sony 16-50 DT F2.8 SAM
Corner (Bottom Right)
F/4.0
Brightness 151
6% Darker
Tamron 17-50 F/2.8
Focus Point
F/4.5
Brightness 93
(Almost Same)
Tamron 17-50 F/2.8
Center
F/4.5
Brightness 121
6% Brighter
Tamron 17-50 F/2.8
Border (Top)
F/4.5
Brightness 207
5% Brighter
Tamron 17-50 F/2.8
Corner (Bottom Right)
F/4.5
Brightness 166
6% Brighter
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 3  
Photo_217Sony 16-50 DT F2.8 SAM  
against
Photo_212 Tamron 17-50 F/2.8
F8.0 1/60 100 50mm.    
  F8.0 1/50100 50mm.  
100% (1:1) Crop Samples
Sony 16-50 DT F2.8 SAM
Focus Point
F/8.0
Brightness 88
(Almost Same)
Sony 16-50 DT F2.8 SAM
Center
F/8.0
Brightness 112
(Almost Same)
Sony 16-50 DT F2.8 SAM
Border (Top)
F/8.0
Brightness 200
(Almost Same)
Sony 16-50 DT F2.8 SAM
Corner (Bottom Right)
F/8.0
Brightness 159
(Almost Same)
Tamron 17-50 F/2.8
Focus Point
F/8.0
Brightness 86
(Almost Same)
Tamron 17-50 F/2.8
Center
F/8.0
Brightness 109
(Almost Same)
Tamron 17-50 F/2.8
Border (Top)
F/8.0
Brightness 198
(Almost Same)
Tamron 17-50 F/2.8
Corner (Bottom Right)
F/8.0
Brightness 156
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
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  Other Sony 16-50 DT F2.8 SAM vs. Tamron 17-50 F/2.8 Comparisons  
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Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F8, F11
Tamron 17-50 vs. Sony 16-50
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
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Tamron 17-50 vs. Sony 16-50
Sharpness at 50mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
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, F8, F10
Sony 16-50 vs. Tamron 17-50
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Tested Apertures F2.8, F3.5, F4, 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
Tamron 17-50 vs. Sony 16-50
Sharpness at 28mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F6.3, F8, F10
Sony 16-50 vs. Tamron 17-50
Sharpness at 50mm.
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Tamron 17-50 vs. Sony 16-50
Sharpness at 18mm.
Tested Apertures F2.8, F6.3, F8, F16
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Sony 16-50 vs. Tamron 17-50
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  Other Comparisons of Sony 16-50 DT F2.8 SAM  
Tamron 18-200 vs. Sony 16-50
Sharpness at 28mm.
Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1
Tokina 28-70 2.8 vs. Sony 16-50
Sharpness at 28mm.
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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
Sony 16-105 vs. Sony 16-50
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
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Sharpness at 28mm.
Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Sony 18-55 vs. Sony 16-50
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. Sony 16-50
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. Sony 16-50
Sharpness at 28mm.
Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
Sony 16-50 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
Sony 16-50 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
Sony 16-50 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
Sony 16-50 vs. Cosina 19-35
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. 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
Sony 16-105 vs. Sony 16-50
Sharpness at 35mm.
Tested Apertures F2.8/F5, F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
Minolta 28-70 2.8 vs. Sony 16-50
Sharpness at 35mm.
Tested Apertures F2.8, 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.
Tested Apertures F2.8, F3.5, F4, 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
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
Sony 16-50 vs. Minolta 35-105mm.
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
  Other Comparisons of Tamron 17-50 F/2.8  
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. 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. 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
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
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
Minolta 28-70 2.8 vs. Tamron 17-50
Sharpness at 35mm.
Tested Apertures F2.8, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
Tokina 28-70 2.8 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 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
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 17-50 vs. Minolta 35-105mm.
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
Tamron 17-50 vs. Cosina 19-35
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.2/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tamron 17-50 vs. Tamron 18-200
Sharpness at 35mm.
Tested Apertures F2.8/F4.5, F3.2/F4.5, F3.5/F4.5, F4/F4.5, 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, F3.2/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tamron 17-50 vs. Sony 16-105
Sharpness at 35mm.
Tested Apertures F2.8/F5, F3.2/F5, F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
Tamron 17-50 vs. Sony 35mm 1.8
Sharpness at 35mm.
Tested Apertures F1.8/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