Panasonic GH1 has a
12.0MP Four Thirds (18.89 x 14.48 mm ) sized CMOS sensor and features Venus Engine HD processor. On the other hand, Panasonic GH2 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine FHD processor.
Below you can see the GH1 and GH2 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic GH1 and Panasonic GH2 Cameras
As seen above, Panasonic GH1 has a 1.2x Larger sensor area than Panasonic GH2. 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 GH1 and Panasonic GH2 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, GH1 has scored 64, 4 points higher than GH2.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic GH1
64
21.6 bits
11.6 Evs
772 ISO
Panasonic GH2
60
21.2 bits
11.3 Evs
655 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 GH1
or the
Panasonic GH2 ,
including hyperfocal distance.
