Canon A1100 IS has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Digic 4 processor. On the other hand, Pentax RZ10 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the A1100 IS and RZ10 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon A1100 IS and Pentax RZ10 Cameras
Canon A1100 IS and Pentax RZ10 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
Canon A1100 IS
or the
Pentax RZ10 ,
including hyperfocal distance.
