Pentax VS20 has a
16.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor . On the other hand, Canon SX280 HS has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Digic 6 processor.
Below you can see the VS20 and SX280 HS sensor size comparison.
Sensor Size and Resolution Comparison image of Pentax VS20 and Canon SX280 HS Cameras
Pentax VS20 and Canon SX280 HS 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
Pentax VS20
or the
Canon SX280 HS ,
including hyperfocal distance.
