Panasonic GH4 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine IX processor. On the other hand, Panasonic GH1 has a
12.0MP Four Thirds (18.89 x 14.48 mm ) sized CMOS sensor and features Venus Engine HD processor.
Below you can see the GH4 and GH1 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic GH4 and Panasonic GH1 Cameras
As seen above, Panasonic GH1 has a 1.2x Larger sensor area than Panasonic GH4. 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 GH4 and Panasonic GH1 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, GH4 has scored 74, 10 points higher than GH1.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic GH4
74
23.2 bits
12.8 Evs
791 ISO
Panasonic GH1
64
21.6 bits
11.6 Evs
772 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 GH4
or the
Panasonic GH1 ,
including hyperfocal distance.
