Nikon S100 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor and features Expeed C2 processor. On the other hand, OM System TG-7 has a
12.0MP (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features TruePic VIII processor.
Below you can see the S100 and TG-7 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon S100 and OM System TG-7 Cameras
Nikon S100 and OM System TG-7 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 OM System TG-7 has 32% larger pixel area (2.34µm 2 vs 1.76µm 2 ) compared to Nikon S100, 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
Nikon S100
or the
OM System TG-7 ,
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.
