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Resolution Chart Comparison

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. So a value of 15 equates to 1500 lines per picture height.

Studio light (continuous), cameras set to auto, all settings factory default. Aperture selected for optimum sharpness. Exposure compensation +0.7 EV to +1.3 EV.

Kodak DCS-14n Canon EOS-1Ds
Canon EOS-10D Fujifilm S2 Pro (12 mp size)

Kodak DCS-14n Canon EOS-1Ds
Canon EOS-10D Fujifilm S2 Pro (12 mp size)

Kodak DCS-14n Canon EOS-1Ds
Canon EOS-10D Fujifilm S2 Pro (12 mp size)

Kodak DCS-14n Canon EOS-1Ds
Canon EOS-10D Fujifilm S2 Pro (12 mp size)

Kodak DCS-14n Canon EOS-1Ds
Canon EOS-10D Fujifilm S2 Pro (12 mp size)

Kodak DCS-14n Canon EOS-1Ds
Canon EOS-10D Fujifilm S2 Pro (12 mp size)

Beyond our chart, but not beyond our means

As we expected the DCS-14n has resolution way beyond the capabilities of our standard resolution chart, well almost. We can shoot the chart from a farther subject distance so that the chart is exactly half its normal size (2250 x 1500 on the 4500 x 3000 frame - indicated by the red box in the thumbnail below). This allows us to measure resolution up to 4000 LPH. When reading the crops below values on the chart now represent 1/200th lines per picture height. So a value of 15 equates to 3000 lines per picture height.

Measurable findings (three measurements taken for each camera):

Camera Measurement Absolute Res. Extinction Res.
Kodak DCS-14n Horiz LPH 2500  * 2800 
Vert LPH 2300  * 2700 
5° Diagonal LPH 2000  n/a 
Canon EOS-1Ds Horiz LPH 2400  * 2600 
Vert LPH 2000  * 2600 
5° Diagonal LPH 2000  n/a 
Canon EOS-10D Horiz LPH 1600  1900 
Vert LPH 1450  1850 
5° Diagonal LPH 1000  n/a 
Fujifilm S2 Pro
(12 mp size)
Horiz LPH 1800  2000 
Vert LPH 1700  2000 
5° Diagonal LPH 1000  n/a 

* Visible moiré / alias artifacts

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

The DCS-14n takes the 'resolution king' crown from the EOS-1Ds, there's a subtle improvement in horizontal resolution and a more noticeable improvement in vertical resolution. Extinction of detail occurs at a higher resolution which will also give the illusion of fine details, for example in distant shot trees (assuming Kodak's noise reduction system doesn't smooth them away).

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