Panasonic FZ28 has a
10.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor . On the other hand, Canon A3100 IS has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the FZ28 and A3100 IS sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FZ28 and Canon A3100 IS Cameras
Panasonic FZ28 and Canon A3100 IS 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
Panasonic FZ28
or the
Canon A3100 IS ,
including hyperfocal distance.
