Pentax Q7 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 Q7 and P7100 sensor size comparison.
Sensor Size and Resolution Comparison image of Pentax Q7 and Nikon P7100 Cameras
Pentax Q7 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 Pentax Q7, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
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
Pentax Q7
or the
Nikon P7100 ,
including hyperfocal distance.
