Panasonic LX7 has a
10.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized CMOS sensor and features Venus Engine processor. On the other hand, Canon S120 has a
12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized BSI-CMOS sensor and features Digic 6 processor.
Below you can see the LX7 and S120 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic LX7 and Canon S120 Cameras
Panasonic LX7 and Canon S120 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 LX7 has 20% larger pixel area compared to Canon S120, 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 LX7 and Canon S120 sensors have been tested by DxO and the results show that S120 has a better overall score of 56, 6 points higher compared to LX7's score of 50.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic LX7
50
20.7 bits
11.7 Evs
147 ISO
Canon S120
56
21.3 bits
11.9 Evs
246 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 LX7
or the
Canon S120 ,
including hyperfocal distance.