Olympus VG-160 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Sony H50 has a
9.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Olympus VG-160's sensor provides 5MP more than Sony H50's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the VG-160 and H50 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus VG-160 and Sony H50 Cameras
Olympus VG-160 and Sony H50 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 Sony H50 has 53% larger pixel area (3.13µm 2 vs 2.04µm 2 ) compared to Olympus VG-160, 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
Olympus VG-160
or the
Sony H50 ,
including hyperfocal distance.
