Canon A4000 IS has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Canon SD980 IS has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Digic 4 processor.
Below you can see the A4000 IS and SD980 IS sensor size comparison.
Sensor Size and Resolution Comparison image of Canon A4000 IS and Canon SD980 IS Cameras
Canon A4000 IS and Canon SD980 IS 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 SD980 IS has 32% larger pixel area (2.34µm 2 vs 1.76µm 2 ) compared to Canon A4000 IS, it has larger pixel area to collect light hence potential to 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 A4000 IS
or the
Canon SD980 IS ,
including hyperfocal distance.
