Olympus SP-565UZ has a
10.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor . On the other hand, Nikon P340 has a
12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized BSI-CMOS sensor .
Below you can see the SP-565UZ and P340 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus SP-565UZ and Nikon P340 Cameras
As seen above, Nikon P340 has a 1.5x Larger sensor area than Olympus SP-565UZ. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Olympus SP-565UZ and Nikon P340 sensors have been tested by DxO and the results show that P340 has a better overall score of 54, 24 points higher compared to SP-565UZ's score of 30.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Olympus SP-565UZ
30
18.7 bits
10.1 Evs
68 ISO
Nikon P340
54
20.7 bits
11.9 Evs
273 ISO
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 SP-565UZ
or the
Nikon P340 ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(1/2.3-inch versus 1/1.7-inch),
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.
