Both Panasonic GH1 and Panasonic GF1 have Four Thirds sized 12.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the GH1 and GF1 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic GH1 and Panasonic GF1 Cameras
As seen above, Panasonic GH1 has a 1.2x Larger sensor area than Panasonic GF1. 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 GF1 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, 10 points higher than GF1.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic GH1
64
21.6 bits
11.6 Evs
772 ISO
Panasonic GF1
54
21.2 bits
10.3 Evs
513 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 GF1 ,
including hyperfocal distance.
