Canon 1D has a
4.0MP APS-H (28.7 x 19.1 mm ) sized CCD sensor . On the other hand, Canon 1D MII N has a
8.0MP APS-H (28.7 x 19.1 mm ) sized CMOS sensor .
Below you can see the 1D and 1D MII N sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 1D and Canon 1D MII N Cameras
Canon 1D and Canon 1D MII N 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 1D has 101% larger pixel area compared to Canon 1D MII N, 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 1D
or the
Canon 1D MII N ,
including hyperfocal distance.
