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Sony Cyber-shot DSC-N2 Gordon Laing, November 2006

Outdoor
/ Resolution / Noise / Noise 2 / Corner sharpness / Fringe & macro / Geometry / Vignetting

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Click here for the Sony N2 video tour



 
Sony Cybershot N2 wide-angle uniformity comparison

Sony N2 wide angle uniformity  

To measure and compare the Sony Cyber-shot N2's lens vignetting and light fall-off we photographed a white target with a highly diffused custom filter using it and a number of rival models.

Here are the results for each camera with their built-in lenses set to their widest focal lengths with the apertures wide open and the focus set to infinity.

The images were analysed with Imatest and the full areas presented here at a reduced resolution. Bigger percentages are better.

The image left was taken with the Sony Cyber-shot N2 zoomed-out to 7.9mm with its aperture wide open.

7.9-23.7mm at 7.9mm f2.8
Mean corner fall-off: 79.6%
 

Here the light falls off in the corners to an average of 79.6% of the center measurement, which is an excellent result for the N2. It's roughly the same as the Fujifilm F30 and measurably ahead of the Panasonic TZ1 and especially the Canon A640.

Canon PowerShot A640
Fujifilm FinePix F30
 
Panasonic Lumix DMC TZ1
Canon A640 wide angle uniformity
Fujifilm F30 wide angle uniformity
 
Panasonic TZ1 wide angle uniformity
7.3-29.2mm at 7.3mm f2.8
Mean corner fall-off: 67%
 

8-24mm at 8mm f2.8
Mean corner fall-off: 80.8%

  5.2-52mm at 5.2mm f2.8
Mean corner fall-off: 72.8%



Sony Cybershot DSC N2 telephoto uniformity comparison

Sony N2 telephoto uniformity  

To measure and compare the Sony Cyber-shot N2's lens vignetting and light fall-off we photographed a white target with a highly diffused custom filter using it and a number of rival models.

Here are the results for each camera with their built-in lenses set to their longest focal lengths with the apertures wide open and the focus set to infinity.

The images were analysed with Imatest and the full areas presented here at a reduced resolution. Bigger percentages are better.

The image left was taken with the Sony Cyber-shot N2 zoomed-in to 23.7mm with its aperture wide open.

7.9-23.7mm at 23.7mm f5.4
Mean corner fall-off: 86.9%
 

Here the light falls off in the corners to an average of 86.9% of the center measurement, which again places it roughly equivalent to the leading Fujifilm F30 and ahead of its other rivals, especially the Canon A640. It's fair to say that like the Fujifilm F30, you're unlikely to notice any darkening in the corners of the N2's images at any focal length.


Canon PowerShot A640
Panasonic Lumix DMC TZ1
Fujifilm FinePix F30
Canon A640 telephoto uniformity
Panasonic TZ1 telephoto uniformity
Fujifilm F30 telephoto uniformity
7.3-29.2mm at 29.2mm f4.1
Mean corner fall-off: 77.7%
  5.2-52mm at 52mm f4.2
Mean corner fall-off: 81.8%
 

8-24mm at 24mm f5
Mean corner fall-off: 88.1%



Sony Cybershot N2 results

Outdoor / Resolution / Noise / Noise 2 / Corner sharpness / Fringe & macro / Geometry / Vignetting
All words, images, videos and layout, copyright 2005-2014 Gordon Laing. May not be used without permission.

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