Canon R5 has a
45.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Digic X processor. On the other hand, Canon 1D X II has a
20.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Dual DIGIC 6+ processor.
Canon R5's sensor provides 25MP more than Canon 1D X II'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 R5 and 1D X MII sensor size comparison.
Sensor Size and Resolution Comparison image of Canon R5 and Canon 1D X II Cameras
Canon R5 and Canon 1D X II 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. On the other hand, since Canon 1D X II has 124% larger pixel area (43.29µm 2 vs 19.30µm 2 ) compared to Canon R5, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Canon R5 and Canon 1D X II 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, R5 has scored 95, 7 points higher than 1D X MII.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon R5
95
25.3 bits
14.6 Evs
3042 ISO
Canon 1D X II
88
24.1 bits
13.5 Evs
3207 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 R5
or the
Canon 1D X II ,
including hyperfocal distance.
