|
| Camera | Measurement | Absolute Res. |
Extinction Res. |
| Leica Digilux 2 | Horiz LPH | 1500 | 1800 |
| Vert LPH | 1350 | 1700 | |
| 5° Diagonal LPH | + 1000 | n/a | |
| Canon PowerShot G5 | Horiz LPH | 1450 | * 1650 |
| Vert LPH | 1350 | * 1700 | |
| 5° Diagonal LPH | + 1000 | n/a | |
| Nikon D70 | Horiz LPH | 1600 | * 1850 |
| Vert LPH | 1450 | * 1850 | |
| 5° Diagonal LPH | + 1000 | n/a | |
| Olympus C-8080 WZ | Horizontal LPH | 1700 | * 2000 |
| Vertical LPH | 1650 | * 1950 | |
| 5° Diagonal LPH | + 1000 | n/a |
* Moiré is visible, + Chart maximum
Definition of terms:
| 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 Resolution | Still defined detail (below Nyquist frequency*) |
| Extinction Resolution | Detail beyond camera's definition (becomes a solid gray alias) |
| n/a | Not Available (above the capability of the test chart) |
| n/v | Not Visible (not visible on test results) |
* Nyquist frequency defined as the highest spatial
frequency where the sensor can still
faithfully record image detail. Beyond the Nyquist frequency aliasing
occurs.
Thanks to cleaner image processing and a sharp lens the Digilux 2 produces just slightly more resolution than the PowerShot G5 on our resolution chart, and is clearly better at avoiding the interpolation artifacts which we see in the G5 crops. For the money you can get even more resolution by going for the six megapixel Nikon D70 (and plenty left over for lenses) or the eight megapixel Olympus C-8080 Wide Zoom.
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