Casio EX-H20G has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Exilim Engine HS processor. On the other hand, Ricoh WG-4 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor .
Below you can see the EX-H20G and WG-4 sensor size comparison.
Sensor Size and Resolution Comparison image of Casio EX-H20G and Ricoh WG-4 Cameras
Casio EX-H20G and Ricoh WG-4 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 Casio EX-H20G has 14% larger pixel area compared to Ricoh WG-4, it has potential to collect more light on pixel level hence 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
Casio EX-H20G
or the
Ricoh WG-4 ,
including hyperfocal distance.
