Pentax X70 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Panasonic FZ40 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine HD II processor.
Below you can see the X70 and FZ40 sensor size comparison.
Sensor Size and Resolution Comparison image of Pentax X70 and Panasonic FZ40 Cameras
Pentax X70 and Panasonic FZ40 have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
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
Panasonic FZ40 ,
including hyperfocal distance.
