Canon 5D MIII has a 22.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Digic 5+ processor. On the other hand, Canon 5D MII has a 21.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Digic 4 processor.
Below you can see the 5D MIII and 5D MII sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 5D MIII and Canon 5D MII Cameras
Canon 5D MIII and Canon 5D MII have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture.
DxOMark Sensor Scores
Both Canon 5D MIII and Canon 5D MII 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, 5D MIII has scored 81, 2 points higher than 5D MII.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon 5D MIII |
81 |
24.0 bits |
11.7 Evs |
2293 ISO |
Canon 5D MII |
79 |
23.7 bits |
11.9 Evs |
1815 ISO |