Both Sony A7R III and Sony RX1R II have Full frame sized 42.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Another similarity between these two cameras is that both Sony RX1R II and Sony A7R III sensors lack anti-alias (Low-Pass) filters. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the A7R III and RX1R II sensor size comparison.
Sensor Size and Resolution Comparison image of Sony A7R III and Sony RX1R II Cameras
Sony A7R III and Sony RX1R 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.
DxOMark Sensor Scores
Both Sony A7R III and Sony RX1R 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, A7R III has scored 100, 3 points higher than RX1R II.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A7R III |
100 |
26.0 bits |
14.7 Evs |
3523 ISO |
Sony RX1R II |
97 |
25.8 bits |
13.9 Evs |
3204 ISO |