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Resolution Chart Comparison

Comparison cameras:

  • Canon PowerShot A95 (5 MP, 3x zoom)
  • Canon PowerShot S60 (5 MP, 3.6x zoom)
  • Nikon Coolpix 5200 (5 MP, 3x zoom)
  • HP Photosmart R707 (5 MP, 3x zoom)

Shots here are of the PIMA/ISO 12233 standard resolution test chart (more of which are available in our comparison database). This resolution chart allows us to measure the actual performance of the lens and sensor system. It measures the ability of the camera to resolve lines at gradually higher resolutions and enables us to provide a definitive value for comparison purposes. Values on the chart are 1/100th lines per picture height. Thus a value of 15 equates to 1500 lines per picture height.

Studio light, cameras set to auto, settings all factory default. If possible aperture was selected for optimum sharpness. Exposure compensation +0.7 EV to +1.3 EV.

Canon PowerShot A95 (1,007 KB; 5 MP) Canon PowerShot S60 (1,807 KB; 5 MP)
Nikon Coolpix 5200 (1,546 KB; 5 MP) HP Photosmart R707 (1,825 KB; 5 MP)

Resolution Chart crops

Canon PowerShot A95 Nikon Coolpix 5200
Canon PowerShot S60 HP Photosmart R707
Canon PowerShot A95 Nikon Coolpix 5200
Canon PowerShot S60 HP Photosmart R707

Measurable findings

Camera Measurement
Absolute
resolution
Extinction
resolution
Canon PowerShot A95 Horizontal LPH 1450 *1650
Vertical LPH 1350 *1650
5° Diagonal LPH + 1000  n/a 
HP PhotoSmart R707 Horizontal LPH * 1400  1650 
Vertical LPH 1300  1650 
5° Diagonal LPH + 1000  n/a 
Canon PowerShot S60 Horiz LPH 1450  * 1650 
Vert LPH 1350  * 1700 
5° Diagonal LPH + 1000  n/a 
Nikon Coolpix 5200 Horizontal LPH 1400   *1650
Vertical LPH 1350   *1650
5° Diagonal LPH + 1000  n/a 

* Moiré is visible
+ Chart maximum
LPH Lines per Picture Height (to allow for different aspect ratios the measurement is the same for horizontal and vertical)
5° Diagonal Lines set at 5° diagonal
Absolute res. Point at which all lines of a resolution bar are still visible and defined, beyond this resolution loss of detail occurs (below Nyquist frequency).
Extinction res. Detail beyond camera's definition (becomes aliased)
n/a Not Available (above the capability of the test chart)
n/v Not Visible (not visible on test results)

Well, it may be a buget model, but there's nothing 'cut price' about the A95's ability to capture fine detail. The resolution is near the top of its class, and almost identical to the PowerShot S60. Very impressive results indeed for a camera with 5 million pixels that sells for under $400.

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