Canon D30 has a
3.0MP APS-C (22.7 x 15.1 mm ) sized CMOS sensor . On the other hand, Canon 10D has a
6.0MP APS-C (22.7 x 15.1 mm ) sized CMOS sensor .
Below you can see the D30 and 10D sensor size comparison.
Sensor Size and Resolution Comparison image of Canon D30 and Canon 10D Cameras
Canon D30 and Canon 10D 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 D30 has 102% larger pixel area compared to Canon 10D, 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 D30
or the
Canon 10D ,
including hyperfocal distance.
