Canon 1D MIII has a
10.0MP APS-H (28.7 x 18.7 mm ) sized CMOS sensor . On the other hand, Nikon P330 has a
12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized BSI-CMOS sensor .
Below you can see the 1D MIII and P330 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 1D MIII and Nikon P330 Cameras
As seen above, Canon 1D MIII has a 12.9x Larger sensor area than Nikon P330. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
DxOMark Sensor Scores
Both Canon 1D MIII and Nikon P330 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 MIII has scored 71, 17 points higher than P330.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon 1D MIII
71
22.7 bits
11.7 Evs
1078 ISO
Nikon P330
54
21.0 bits
11.7 Evs
213 ISO
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Canon 1D MIII
or the
Nikon P330 ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(APS-H versus 1/1.7-inch),
so compare them at the same framing rather than the same focal length.
Put the same focal length on the smaller sensor and it will show less depth of
field, not more, because it also crops tighter. The calculator shows the
full frame equivalent focal length for each body so you can match the framing.