Nikon P7800 has a
12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized BSI-CMOS sensor . On the other hand, Nikon P7100 has a
10.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized CCD sensor and features Expeed C2 processor.
Below you can see the P7800 and P7100 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon P7800 and Nikon P7100 Cameras
Nikon P7800 and Nikon P7100 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 Nikon P7100 has 20% larger pixel area (4.16µm 2 vs 3.46µm 2 ) compared to Nikon P7800, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Nikon P7800 and Nikon P7100 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, P7800 has scored 54, 13 points higher than P7100.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Nikon P7800
54
21.2 bits
11.7 Evs
200 ISO
Nikon P7100
41
19.4 bits
10.7 Evs
165 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
Nikon P7800
or the
Nikon P7100 ,
including hyperfocal distance.
