Canon SD940 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, Panasonic FH20 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the SD940 IS and FH20 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon SD940 IS and Panasonic FH20 Cameras
Canon SD940 IS and Panasonic FH20 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 SD940 IS
or the
Panasonic FH20 ,
including hyperfocal distance.