Olympus TG-3 has a
16.0MP (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features TruePic VII processor. On the other hand, Nikon D3S has a
12.0MP Full frame (36 x 23.9 mm ) sized CMOS sensor and features Expeed processor.
Below you can see the TG-3 and D3S sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus TG-3 and Nikon D3S Cameras
As seen above, Nikon D3S has a 30.7x Larger sensor area than Olympus TG-3. 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.
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 TG-3
or the
Nikon D3S ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
( versus Full frame),
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.
