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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.

Olympus E-420 (4,940 KB; 10 MP) Nikon D60 (2,665 KB, 10 MP)
Canon EOS 450D (2.6MB, 12 MP) Olympus E-410 (5,530 KB; 10 MP)

Olympus E-420 Nikon D60
Canon EOS 450D Olympus E-410

Olympus E-420 Nikon D60
Canon EOS 450D Olympus E-410

Olympus E-420 Nikon D60
Canon EOS 450D Olympus E-410

Measurable results

Camera Measurement
Absolute
resolution
Extinction
resolution
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
+ 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)
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