Sony A100 has a
10.0MP APS-C (23.6 x 15.8 mm ) sized CCD sensor . On the other hand, Ricoh GXR A12 50mm has a
12.0MP APS-C (23.6 x 15.7 mm ) sized CMOS sensor and features GR engine III processor.
Below you can see the A100 and GXR A12 50mm F2.5 Macro sensor size comparison.
Sensor Size and Resolution Comparison image of Sony A100 and Ricoh GXR A12 50mm Cameras
Sony A100 and Ricoh GXR A12 50mm have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the 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
Sony A100
or the
Ricoh GXR A12 50mm ,
including hyperfocal distance.
