Ricoh GXR P10 28-300mm has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Smooth Imaging Engine IV processor. On the other hand, Canon 450D has a
12.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor .
Below you can see the GXR P10 28-300mm F3.5-5.6 VC and 450D sensor size comparison.
Sensor Size and Resolution Comparison image of Ricoh GXR P10 28-300mm and Canon 450D Cameras
As seen above, Canon 450D has a 11.7x Larger sensor area than Ricoh GXR P10 28-300mm. 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
Ricoh GXR P10 28-300mm
or the
Canon 450D ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(1/2.3-inch versus APS-C),
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.
