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  Test # 1748 
 
Camera ISO Test

Sony A55 ISO Test

Tested ISOs: ISO100, ISO200, ISO400, ISO800, ISO1600, ISO3200, ISO6400, ISO12800
 
Test by Sinan Ozturk   
PhotoAgainst Photo Editor's Comment: In our official ISO test we shoot a chart that consists of 1 and 5 American Dolars. We take 6 crops from various sections of the chart to display details in different ISO.

For each camera we shoot a good quality lens in its sweat spot This is usually F8 for interchangeable lens cameras.

Unlike our other comparisons, these ISO shots are taken in different times and lighting conditions might be different. So please consider only ISOs in these tests (we recommend analyzing black and white crops we provide) as contrast and color cast might not be very accurate in these comparisons. After reviewing the test, scroll to the bottom of the page to compare Sony A55's ISO with other cameras.
  
  
  Comparison Photo # 1  
Photo_3548Sony A55 + Sigma 50mm F/2.8 DG Macro  
against
Photo_3547 Sony A55 + Sigma 50mm F/2.8 DG Macro
F8.0 1/30 200 50mm.    
  F8.0 1/5100 50mm.  
Photo by Sinan Ozturk  Photo by Sinan Ozturk 
100% (1:1) Crop Samples
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop1
ISO 200
Brightness 127
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop2
ISO 200
Brightness 121
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop3
ISO 200
Brightness 110
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop4
ISO 200
Brightness 101
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop5
ISO 200
Brightness 100
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop6
ISO 200
Brightness 121
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop1
ISO 100
Brightness 128
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop2
ISO 100
Brightness 119
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop3
ISO 100
Brightness 105
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop4
ISO 100
Brightness 102
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop5
ISO 100
Brightness 97
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop6
ISO 100
Brightness 116
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 2  
Photo_3549Sony A55 + Sigma 50mm F/2.8 DG Macro  
against
Photo_3547 Sony A55 + Sigma 50mm F/2.8 DG Macro
F8.0 1/60 400 50mm.    
  F8.0 1/5100 50mm.  
100% (1:1) Crop Samples
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop1
ISO 400
Brightness 126
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop2
ISO 400
Brightness 118
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop3
ISO 400
Brightness 105
(Exactly Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop4
ISO 400
Brightness 100
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop5
ISO 400
Brightness 95
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop6
ISO 400
Brightness 113
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop1
ISO 100
Brightness 128
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop2
ISO 100
Brightness 119
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop3
ISO 100
Brightness 105
(Exactly Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop4
ISO 100
Brightness 102
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop5
ISO 100
Brightness 97
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop6
ISO 100
Brightness 116
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 3  
Photo_3550Sony A55 + Sigma 50mm F/2.8 DG Macro  
against
Photo_3547 Sony A55 + Sigma 50mm F/2.8 DG Macro
F8.0 1/100 800 50mm.    
  F8.0 1/5100 50mm.  
100% (1:1) Crop Samples
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop1
ISO 800
Brightness 131
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop2
ISO 800
Brightness 122
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop3
ISO 800
Brightness 109
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop4
ISO 800
Brightness 104
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop5
ISO 800
Brightness 98
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop6
ISO 800
Brightness 117
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop1
ISO 100
Brightness 128
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop2
ISO 100
Brightness 119
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop3
ISO 100
Brightness 105
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop4
ISO 100
Brightness 102
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop5
ISO 100
Brightness 97
(Almost Same)
Sony A55 + Sigma 50mm F/2.8 DG Macro
Crop6
ISO 100
Brightness 116
(Almost Same)
Black & White crops are displayed for better details study.
Click here to switch back to colored crops.
  EXIF  
 
  Comparison Photo # 4  
Photo_3551Sony A55 + Sigma 50mm F/2.8 DG Macro  
against
Photo_3547 Sony A55 + Sigma 50mm F/2.8 DG Macro
F8.0 1/250 1600 50mm.    
  F8.0 1/5100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 6 crops from Sony A55 + Sigma 50mm F/2.8 DG Macro ISO 1600 vs. Sony A55 + Sigma 50mm F/2.8 DG Macro ISO 100 for locations Crop1, Crop2, Crop3, Crop4, Crop5, Crop6
  EXIF  
 
  Comparison Photo # 5  
Photo_3552Sony A55 + Sigma 50mm F/2.8 DG Macro  
against
Photo_3547 Sony A55 + Sigma 50mm F/2.8 DG Macro
F8.0 1/320 3200 50mm.    
  F8.0 1/5100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 6 crops from Sony A55 + Sigma 50mm F/2.8 DG Macro ISO 3200 vs. Sony A55 + Sigma 50mm F/2.8 DG Macro ISO 100 for locations Crop1, Crop2, Crop3, Crop4, Crop5, Crop6
  EXIF  
 
  Comparison Photo # 6  
Photo_3553Sony A55 + Sigma 50mm F/2.8 DG Macro  
against
Photo_3547 Sony A55 + Sigma 50mm F/2.8 DG Macro
F8.0 1/640 6400 50mm.    
  F8.0 1/5100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 6 crops from Sony A55 + Sigma 50mm F/2.8 DG Macro ISO 6400 vs. Sony A55 + Sigma 50mm F/2.8 DG Macro ISO 100 for locations Crop1, Crop2, Crop3, Crop4, Crop5, Crop6
  EXIF  
 
  Comparison Photo # 7  
Photo_3554Sony A55 + Sigma 50mm F/2.8 DG Macro  
against
Photo_3547 Sony A55 + Sigma 50mm F/2.8 DG Macro
F8.0 1/1000 12800 50mm.    
  F8.0 1/5100 50mm.  
100% (1:1) Crop Samples
Login or Register to display 6 crops from Sony A55 + Sigma 50mm F/2.8 DG Macro ISO 12800 vs. Sony A55 + Sigma 50mm F/2.8 DG Macro ISO 100 for locations Crop1, Crop2, Crop3, Crop4, Crop5, Crop6
  EXIF  
 
PhotoAgainstPhoto.com Official ISO Test
You can select 2 camera to compare their ISO performances side by side:
against

 

 

 

  Other Sony A55 vs. Comparisons  
Sony A55 Multiframe Noise Reduction Test
at 24mm.
Normal ISO1600 vs. Multiframe Noise Reduction ISO 1600
  Other Comparisons of Sony A55  
Sony A55 vs. Sony A99 (Macro comparison with same Tamron 90mm F2.8 Lens)
at 90mm.
Handheld Macro Shot with Tamron 90mm F2.8 on both APS-C and Full Frame Cameras
Sony A55 (+Sony 16-50 2.8) vs. Sony A99 (+Carl Zeiss 24-70 2.8)
Sharpness at 24-70mm.
APS-C sensor vs. Full Frame Sensor both equipped with a good quality zoom lens
Sony A55 vs. Sony A99
Sharpness at 12mm.
APS-C sensor vs. Full Frame Sensor with same lens.
Samsung NX300 vs. Sony A55
at 35mm.
F8 Cloudy whitebalance
Sony NEX-6 vs. Sony A55
ISO Test: ISO 100, 200, 400, 640, 800, 1600, 3200, 6400, 10000, 12800, 16000,25600
Samsung NX300 vs. Sony A55
ISO Test: ISO 100, 200, 400, 640, 800, 1600, 3200, 6400, 10000, 12800, 16000,25600
Samsung NX300 vs. Sony A55
at 18mm.
Wide Angle - Low light shot - F13 - lowest ISO - Exposure +2/3
Sony NEX-6 vs. Sony A55
at 18mm.
Wide Angle - Low light shot - F13 - lowest ISO - Exposure +2/3
Samsung NX300 vs. Sony A55
at 18mm.
Wide Angle - Low light shot - F11 - lowest ISO
Sony A55 vs. Sony NEX-6
at 18mm.
Wide Angle - Low light shot - F11 - lowest ISO
Sony NEX-6 vs. Sony A55
at 24mm.
Landscape shot on Tripod, F4.5 and F8
Sony A55 vs. Samsung NX300
at 24mm.
Landscape shot on Tripod, F4 and F8
Sony A55 vs. Sony NEX-6
at 16-17mm.
Auto WB, Auto ISO, Vivid Mode, Handheld shot
Sony A55 vs. Samsung NX300
at 17-18mm.
Auto WB, Auto ISO, Vivid Mode, Handheld shot
Nikon P300 vs. Sony A55
at 16-17mm.
Auto WB, Auto ISO, Handheld shot
Sony A55 (+Tamron 17-50 2.8 Lens) vs. Samsung NX300 Video Comparison
at 17mm.
Same video shot with both Samsung NX300 and Sony Alpha 55
Sony NEX 6 (+ Sony E 16-50 F/3.5-5.6 OSS Lens) vs. Sony A55 (+Tamron 17-50 2.8 Lens) Video Comparison
at 17mm.
Sony NEX vs. Sony Alpha SLT video comparison
Sony NEX-6 vs. Sony A55
Sony A55 vs. Sony A35 Video Comparison
at 20mm.
Video comparison of APS-C sized Sony Alpha 55 and Sony Alpha 35