Panasonic GM1 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor . On the other hand, Canon 1100D has a
12.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor and features Digic 4 processor.
Below you can see the GM1 and 1100D sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic GM1 and Canon 1100D Cameras
As seen above, Canon 1100D has a 1.5x Larger sensor area than Panasonic GM1. 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
Both Panasonic GM1 and Canon 1100D sensors have been tested by DxoMark. DxoMark 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. Of the two cameras that we are comparing, GM1 has scored 66, 4 points higher than 1100D.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic GM1
66
22.3 bits
11.7 Evs
660 ISO
Canon 1100D
62
21.9 bits
11.0 Evs
755 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
Panasonic GM1
or the
Canon 1100D ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(Four Thirds 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.
