Resolution Chart Comparison
Comparison cameras:
- Minolta DiMAGE A200 (8MP, 7x zoom)
- Nikon Coolpix 8700 (8 MP, 10x zoom)
- Olympus C-8080 WZ (8 MP, 5x zoom)
- Konica Minolta DiMAGE A2 (8 MP, 7x zoom)
- Sony DSC-F828 (8 MP, 7.1x zoom)
- Canon PowerShot Pro 1 (8 MP, 7.1x 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
Measurable findings
| Camera |
Measurement |
Absolute
resolution |
Extinction
resolution |
| Konica Minolta A200 |
Horiz LPH |
*1650 |
*1900 |
| Vert LPH |
*1500 |
*1850 |
| 5° Diagonal LPH |
#+ 1000 |
n/a |
| Olympus C-8080 WZ |
Horiz LPH |
1750 |
* 2000 |
| Vert LPH |
1650 |
* 1950 |
| 5° Diagonal LPH |
+1000 |
n/a |
| Konica Minolta A2 |
Horizontal LPH |
1600 |
* 1850 |
| Vertical LPH |
*1400 |
* 1800 |
| 5° Diagonal LPH |
#+ 1000 |
n/a |
| Nikon Coolpix 8700 |
Horiz LPH |
1600 |
* 1900 |
| Vert LPH |
1500 |
1850 |
| 5° Diagonal LPH |
+1000 |
n/a |
| Sony DSC-F828 |
Horiz LPH |
1650 |
* 1950 |
| Vert LPH |
1550 |
1950 |
| 5° Diagonal LPH |
+1000 |
n/a |
| Canon PowerShot Pro 1 |
Horiz LPH |
1700 |
1950 |
| Vert LPH |
1650 |
* 1950 |
| 5° Diagonal LPH |
#+ 1000 |
n/a |
| * |
Moiré is visible |
| # |
Jagged diagonals |
| + |
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) |
Unsurprisingly, the A200 produces a result very similar out of the camera JPEG to the A2, though the new processor does seem to be squeezing out a little more resolution (to be fair this may simply be the result of QC differences between our sample cameras - this is after all the same lens and CCD). Disappointingly the fine detail capture is still not that clean, with visible moire from about 1400 lines. To see how much of a resolution advantage shooting RAW offers, see the next page.
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