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Resolution Chart Comparison

Comparison cameras:

  • Panasonic DMC-FZ20 (5 MP, 12x zoom)
  • Kodak DX7590 (5 MP, 10x zoom)
  • Fuji FinePix S5000 Zoom (6MP, 10x zoom)*
  • Canon PowerShot S1 IS (3 MP, 10x zoom)

*the FinePix S5000 has a 3.1 MP effective SuperCCD chip that outputs 6MP images - these measurements were taken in 6MP mode.

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.

Panasonic DMC-FZ20 (1,846 KB; 5 MP) Fuji FinePix S5000 Zoom (1,451 KB; 6 MP)
Kodak DX7590 (1,418 KB; 5 MP) Canon PowerShot S1 IS (1,273 KB; 3 MP)

Resolution Chart crops

Panasonic DMC-FZ20 Kodak DX7590
Fuji FinePix S5000 Zoom Canon PowerShot S1 IS
Panasonic DMC-FZ20 Kodak DX7590
Fuji FinePix S5000 Zoom Canon PowerShot S1 IS

Measurable findings

Camera Measurement
Absolute
resolution
Extinction
resolution
Panasonic DMC-FZ20 Horizontal LPH 1350 1650
Vertical LPH 1300 1600
5° Diagonal LPH +1000 n/a
Kodak DX7590 Horizontal LPH 1100 *1400
Vertical LPH 1200 *1450
5° Diagonal LPH +1000 n/a
Fuji FinePix S5000 Zoom Horiz LPH 1200 *1300 
Vert LPH *1000 *1300 
5° Diagonal LPH *900 *1000
Canon PowerShot S1 IS Horizontal LPH 1050 *1300
Vertical LPH 1050 *1300
5° Diagonal LPH 900 n/a

* Moiré is visible
+ 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)

Very clean images with superb resolution - the best of the four cameras on test here by a fair margin, and clearly higher than the FZ3, though slightly softer. The result is all the more impressive given that the 12x optic on the FZ20 offers a considerably wider range than any of the other cameras in the group. The Venus II processor has ensured virtually no artefacts are visible, and the Leica lens is obviously doing its job. Very good results indeed.

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