Previous page Next page

Compared to...

Resolution 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 8 equates to 800 lines per picture height.

Studio light, cameras set to auto, all settings factory default. Exposure compensation between +0.7 and +1.0 EV to compensate for the white chart. Click on the camera name below the crops to download the full resolution chart (large JPEG's).

Canon PowerShot G6 (2,388 KB; 7 MP) Casio EXILIM EX-P700 (4,195 KB; 7 MP)
Olympus C-7000 Z (3,751 KB; 7 MP) Pentax Optio 750Z (3,356 KB; 7 MP)
Sony Cyber-shot DSC-V3 (2,709 KB; 7 MP) Olympus C-8080 WZ (3,089 KB; 8 MP)

Canon PowerShot G6 Casio EXILIM EX-P700
Olympus C-7000 Z Pentax Optio 750Z
Sony Cyber-shot DSC-V3 Olympus C-8080 WZ

Canon PowerShot G6 Casio EXILIM EX-P700
Olympus C-7000 Z Pentax Optio 750Z
Sony Cyber-shot DSC-V3 Olympus C-8080 WZ

Canon PowerShot G6 Casio EXILIM EX-P700
Olympus C-7000 Z Pentax Optio 750Z
Sony Cyber-shot DSC-V3 Olympus C-8080 WZ

Measurable findings (three measurements taken for each camera)

Camera Measurement Absolute Res. Extinction Res.
Canon PowerShot G6 Horizontal LPH 1600 1800
Vertical LPH 1500 * 1900
5° Diagonal LPH + 1000 n/a
Casio EXILIM EX-P700 Horizontal LPH 1600 * 1900
Vertical LPH * 1500 * 1900
5° Diagonal LPH + 1000 n/a
Olympus C-7000 Z Horizontal LPH * 1650 * 1850
Vertical LPH * 1550 * 1850
5° Diagonal LPH + 1000 n/a
Pentax Optio 750Z Horizontal LPH 1500 1650
Vertical LPH 1500 * 1750
5° Diagonal LPH + 1000 n/a
Sony Cyber-shot DSC-V3 Horizontal LPH 1650 +* 2000
Vertical LPH * 1550 * 1900
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, # Jagged diagonals

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 CCD can still faithfully record
image detail. Beyond the Nyquist frequency aliasing occurs.

In joint first places comes the Sony DSC-V3 and Olympus C-7000 Zoom which produced 1650 LPH horizontally and 1550 LPH vertically, which is really not far off the kind of resolution we got out of the eight megapixel digital cameras we tested earlier in the year. On the downside the C-7000 did exhibit moire at higher resolutions. After this the Canon G6 and Casio EX-P700 both delivered similar resolution, the G6 could have done more if it hadn't been for the 'shallow jaggies' which affected our reading of vertical resolution. Just like the C-7000 the P700 also exhibited some fairly strong moire. In a resounding last place was the Pentax Optio 750Z whose lens really let it down it was unable to produce much more resolution than we'd expect from a five megapixel digital camera.

Previous page Next page
We are retrieving offers for your location, please refresh the page to see the prices.

Comments