Resolution Chart Comparison
Shots here are of our new 'version two' resolution chart which provides for measurement of resolution up to 4000 LPH (Lines Per Picture Height). A value of 20 equates to 2000 lines per picture height. For each camera the relevant prime lens was used. The chart is shot at a full range of apertures and the sharpest image selected. Studio light, cameras set to aperture priority (optimum aperture selected), image parameters default. Exposure compensation set to deliver approximately 80% luminance of white area.
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| Olympus E-420 (4,940 KB; 10 MP) | Nikon D60 (2,665 KB, 10 MP) |
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| Canon EOS 450D (2.6MB, 12 MP) | Olympus E-410 (5,530 KB; 10 MP) |
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| Olympus E-420 | Nikon D60 |
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| Canon EOS 450D | Olympus E-410 |
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| Olympus E-420 | Nikon D60 |
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| Canon EOS 450D | Olympus E-410 |
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| Olympus E-420 | Nikon D60 |
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| Canon EOS 450D | Olympus E-410 |
Measurable results
| Camera | Measurement | Absolute resolution |
Extinction resolution |
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| Olympus E-420 | Horizontal LPH | * 2050 | * 2350 |
| Vertical LPH | * 1850 | * 2300 | |
| Nikon D60 | Horizontal LPH | 2200 | 2300 |
| Vertical LPH | 1800 | 2300 | |
| Canon EOS 450D | Horizontal LPH | 2300 | * 2500 |
| Vertical LPH | 2200 | * 2500 | |
| Olympus E-410 | Horizontal LPH | * 2050 | * 2300 |
| Vertical LPH | * 1800 | * 2300 |
| * | Moire is visible |
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| + | Chart maximum |
| LPH | Lines per Picture Height (to allow for different aspect ratios the measurement is the same for horizontal and vertical) |
| Absolute resolution | 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 resolution | Detail beyond camera's definition (becomes aliased) |
