Canon 1D MIV has a 16.0MP APS-H (27.9 x 18.6 mm ) sized CMOS sensor and features Digic 4 processor. On the other hand, Canon 1D MIII has a 10.0MP APS-H (28.7 x 18.7 mm ) sized CMOS sensor .
Canon 1D MIV's sensor provides 6MP more than Canon 1D MIII's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the 1D MIV and 1D MIII sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 1D MIV and Canon 1D MIII Cameras
Canon 1D MIV and Canon 1D MIII have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
DxOMark Sensor Scores
Both Canon 1D MIV and Canon 1D MIII sensors have been tested by DxoMark. DxoMark scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Of the two cameras that we are comparing, 1D MIV has scored 74, 3 points higher than 1D MIII.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Canon 1D MIV |
74 |
22.8 bits |
12.0 Evs |
1320 ISO |
|
Canon 1D MIII |
71 |
22.7 bits |
11.7 Evs |
1078 ISO |