Panasonic GF1 has a 12.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine HD processor. On the other hand, Olympus E-M10 has a 16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features TruePic VII processor.
Below you can see the GF1 and E-M10 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic GF1 and Olympus E-M10 Cameras
Panasonic GF1 and Olympus E-M10 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 32% larger pixel area compared to Olympus E-M10, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It 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. Panasonic GF1 and Olympus E-M10 sensors have been tested by DxO and the results show that E-M10 has a better overall score of 72, 18 points higher compared to GF1's score of 54.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Panasonic GF1 |
54 |
21.2 bits |
10.3 Evs |
513 ISO |
Olympus E-M10 |
72 |
22.8 bits |
12.3 Evs |
884 ISO |