Panasonic G3 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine FHD processor. On the other hand, Panasonic G2 has a
12.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine HD II processor.
Below you can see the G3 and G2 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic G3 and Panasonic G2 Cameras
Panasonic G3 and Panasonic G2 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 Panasonic G2 has 31% larger pixel area (18.74µm 2 vs 14.21µm 2 ) compared to Panasonic G3, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Panasonic G3 and Panasonic G2 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, G3 has scored 56, 3 points higher than G2.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic G3
56
21.0 bits
10.6 Evs
667 ISO
Panasonic G2
53
21.2 bits
10.3 Evs
493 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 G3
or the
Panasonic G2 ,
including hyperfocal distance.
