Canon 1200D has a
18.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features Digic 4 processor. On the other hand, Sigma DP2 Quattro has a
20.0MP APS-C (23.5 x 15.7 mm ) sized CMOS (Foveon X3) sensor and features TRUE III engine processor.
Below you can see the 1200D and DP2 Quattro sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 1200D and Sigma DP2 Quattro Cameras
As seen above, Sigma DP2 Quattro has a 1.1x Larger sensor area than Canon 1200D. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in 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 1200D
or the
Sigma DP2 Quattro ,
including hyperfocal distance.
