Pentax VS20 has a
16.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor . On the other hand, Pentax RZ10 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the VS20 and RZ10 sensor size comparison.
Sensor Size and Resolution Comparison image of Pentax VS20 and Pentax RZ10 Cameras
Pentax VS20 and Pentax RZ10 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 Pentax RZ10 has 15% larger pixel area (2.01µm 2 vs 1.74µm 2 ) compared to Pentax VS20, it has larger pixel area to collect light hence potential to 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
Pentax VS20
or the
Pentax RZ10 ,
including hyperfocal distance.
