Resolution Chart Comparison
Comparison cameras:
- Canon PowerShot A510 (3 MP, 4x zoom)
- Canon PowerShot A520 (4 MP, 4x zoom)
- Konica Minolta DiMAGE X31 (3 MP, 3x zoom)
- Nikon Coolpix 3100 (3 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.
Resolution chart crops
|
|
| Canon PowerShot A510 |
Canon PowerShot A520 |
|
|
| Konica Minolta DiMAGE X31 |
Nikon Coolpix 3100 |
 |
 |
 |
| Canon PowerShot A510 |
Canon PowerShot A520 |
|
|
| Konica Minolta DiMAGE X31 |
Nikon Coolpix 3100 |
Measurable findings
| Camera |
Measurement |
Absolute
resolution |
Extinction
resolution |
| Canon PowerShot A510 |
Horizontal LPH |
1100 |
* 1300 |
| Vertical LPH |
* 1100 |
*1400 |
| 5° Diagonal LPH |
# 1000 |
n/a |
| Canon PowerShot A520 |
Horizontal LPH |
1250 |
* 1450 |
| Vertical LPH |
1300 |
*1500 |
| 5° Diagonal LPH |
* + 1000 |
n/a |
| Nikon Coolpix 3100 |
Horizontal LPH |
1000 |
* 1300 |
| Vertical LPH |
* 1300 |
*1500 |
| 5° Diagonal LPH |
# 900 |
n/a |
| Konica Minolta DiMAGE X31 |
Horizontal LPH |
1000 |
* 1300 |
| Vertical LPH |
* 1000 |
* 1350 |
| 5° Diagonal LPH |
# 900 |
n/a |
| * |
Moiré is visible |
| + |
Chart maximum |
| # |
Jagged diagonals |
| 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) |
The A510 has Canon squeezing the maximum resolution out of a budget, 3.2MP model, and it's certainly not a bad job at all, only around 10% less than the more expensive 4.0MP A520. There is a little moiré at the higher frequencies, and it gets quite messy towards extinction resolution, but all-in-all a pretty impressive result for a camera with a street price as low as $149/£125.
|
Please wait, fetching latest prices.
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