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, Kodak FZ45 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor .
Below you can see the SD940 IS and FZ45 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon SD940 IS and Kodak FZ45 Cameras
Canon SD940 IS and Kodak FZ45 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 Canon SD940 IS has 32% larger pixel area compared to Kodak FZ45, 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
Canon SD940 IS
or the
Kodak FZ45 ,
including hyperfocal distance.
