Olympus 1s has a
12.0MP 1/1.7' (7.44 x 5.58 mm ) sized BSI-CMOS sensor . On the other hand, Fujifilm S8100fd has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the 1s and S8100fd sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus 1s and Fujifilm S8100fd Cameras
As seen above, Olympus 1s has a 1.5x Larger sensor area than Fujifilm S8100fd. 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 1s
or the
Fujifilm S8100fd ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(1/1.7' versus 1/2.3-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.
