|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
![]() |
| Nikon Coolpix 5000 | Sony DSC-F707 |
![]() |
![]() |
| Olympus E-20 | Minolta DiMAGE 7 (converted to sRGB) |
In the table below we're only measuring colour. The RGB values were measured from a VGA reduced image (to average colours, remove noise and eliminate JPEG artifacts) using the Eyedropper tool in Photoshop with a 5 by 5 Average Sample Size.
| Patch |
Nikon |
Sony |
Olympus |
Minolta |
| Black | 19,20,19 | 18,18,20 | 31,29,32 | 29,30,32 |
| Middle Gray | 91,91,91 | 80,89,91 | 92,92,96 | 85,89,97 |
| White | 209,209,205 | 176,189,190 | 201,203,205 | 220,224,226 |
| Magenta | 219,37,93 | 182,16,82 | 184,31,102 | 212,40,116 |
| Red | 207,26,23 | 178,9,4 | 182,30,43 | 208,44,56 |
| Yellow | 212,189,47 | 175,180,37 | 201,193,55 | 215,221,45 |
| Green | 0,130,68 | 8,135,66 | 25,125,76 | 26,136,58 |
| Cyan | 1,153,200 | 12,148,198 | 26,137,193 | 22,144,215 |
| Blue | 33,44,98 | 36,21,98 | 50,34,103 | 45,31,104 |
The Coolpix 5000 did very well for both white balance (the greys are really grey) and colour balance. The great thing about the Coolpix 5000 is that you do have control over colour saturation so if these colours appear slightly too saturated you can simply choose saturation -1 or -2. Kudos.
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 +0.7 EV for all cameras.
| Horizontal resolution | Vertical resolution | 5 degree diagonal res. |
![]() |
![]() |
![]() |
| Nikon Coolpix 5000 | ||
![]() |
![]() |
![]() |
| Sony DSC-F707 | ||
![]() |
![]() |
![]() |
| Olympus E-20 | ||
![]() |
![]() |
![]() |
| Minolta DiMAGE 7 | ||
Measurable findings (three measurements taken for each camera):
| Camera | Measurement | Absolute Res. | Extinction Res. |
| Nikon Coolpix 5000 | Horiz LPH | * 1350 | 1500 |
| Vert LPH | * 1200 | 1500 | |
| 5° Diagonal LPH | + 1000 | - | |
| Sony DSC-F707 | Horiz LPH | 1450 | 1800 |
| Vert LPH | 1300 | 1800 | |
| 5° Diagonal LPH | + 1000 | - | |
| Olympus E-20 | Horiz LPH | * 1350 | 1650 |
| Vert LPH | * 1300 | 1650 | |
| 5° Diagonal LPH | + 1000 | - | |
| Minolta DiMAGE 7 | Horiz LPH | * 1300 | 1450 |
| Vert LPH | * 1150 | 1450 | |
| 5° Diagonal LPH | 900 | - |
* Moiré becomes visible, + Chart maximum
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) |
image detail. Beyond the Nyquist frequency aliasing occurs.
The Coolpix 5000 has roughly the same horizontal resolution as the Olympus E-20 and similar vertical resolution to the Minolta DiMAGE 7. The Sony DSC-F707 maintains its crown for five megapixel resolution. One thing the 5000 did manage better than the others was resolving the 5 degree resolution lines without introducing any artifacts.
| Bookmark: | ||||
| Actions: | < Previous | Next > | Print page |
Please wait, fetching latest prices.















