Panasonic GM1 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor . On the other hand, Panasonic GF1 has a
12.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine HD processor.
Below you can see the GM1 and GF1 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic GM1 and Panasonic GF1 Cameras
Panasonic GM1 and Panasonic GF1 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 GF1 has 31% larger pixel area (18.74µm 2 vs 14.21µm 2 ) compared to Panasonic GM1, 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 GM1 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, GM1 has scored 66, 12 points higher than GF1.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic GM1
66
22.3 bits
11.7 Evs
660 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 GM1
or the
Panasonic GF1 ,
including hyperfocal distance.
