Pentax X70 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Nikon S6400 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Expeed C2 processor.
Below you can see the X70 and S6400 sensor size comparison.
Sensor Size and Resolution Comparison image of Pentax X70 and Nikon S6400 Cameras
Pentax X70 and Nikon S6400 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 Pentax X70 has 32% larger pixel area compared to Nikon S6400, it has potential to collect more light on pixel level hence 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 X70
or the
Nikon S6400 ,
including hyperfocal distance.
