Olympus FE-4000 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features TruePic III processor. On the other hand, Sony HX90V has a
18.0MP (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Bionz X processor.
Sony HX90V's sensor provides 6MP more than Olympus FE-4000'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 FE-4000 and HX90V sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus FE-4000 and Sony HX90V Cameras
Olympus FE-4000 and Sony HX90V 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 Olympus FE-4000 has 52% larger pixel area compared to Sony HX90V, 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
Olympus FE-4000
or the
Sony HX90V ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(1/2.3-inch versus ),
so compare them at the same framing rather than the same focal length.
Put the same focal length on the smaller sensor and it will show less depth of
field, not more, because it also crops tighter. The calculator shows the
full frame equivalent focal length for each body so you can match the framing.
