Olympus SP-100 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor . On the other hand, Olympus 7010 has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features TruePic III processor.
Below you can see the SP-100 and 7010 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus SP-100 and Olympus 7010 Cameras
Olympus SP-100 and Olympus 7010 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
Olympus SP-100
or the
Olympus 7010 ,
including hyperfocal distance.