Ricoh GXR P10 28-300mm has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Smooth Imaging Engine IV processor. 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 GXR P10 28-300mm F3.5-5.6 VC and SD980 IS sensor size comparison.
Sensor Size and Resolution Comparison image of Ricoh GXR P10 28-300mm and Canon SD980 IS Cameras
Ricoh GXR P10 28-300mm 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.
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
Ricoh GXR P10 28-300mm
or the
Canon SD980 IS ,
including hyperfocal distance.