Fujifilm S1500 has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Olympus SP-620 UZ has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features TruePic III+ processor.
Olympus SP-620 UZ's sensor provides 6MP more than Fujifilm S1500'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 S1500 and SP-620 UZ sensor size comparison.
Sensor Size and Resolution Comparison image of Fujifilm S1500 and Olympus SP-620 UZ Cameras
Fujifilm S1500 and Olympus SP-620 UZ 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 Fujifilm S1500 has 59% larger pixel area compared to Olympus SP-620 UZ, 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
Fujifilm S1500
or the
Olympus SP-620 UZ ,
including hyperfocal distance.
