Both Nikon D810 and Nikon D800 have Full frame sized 36.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Another difference between these two cameras is that Nikon D810's sensor lacks anti-alias (Low-Pass) filter. 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 D810 and D800 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon D810 and Nikon D800 Cameras
Nikon D810 and Nikon D800 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 Nikon D810 and Nikon D800 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, D810 has scored 97, 2 points higher than D800.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Nikon D810 |
97 |
25.7 bits |
14.8 Evs |
2853 ISO |
|
Nikon D800 |
95 |
25.3 bits |
14.4 Evs |
2853 ISO |