Olympus E-PL7 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features TruePic VII processor. On the other hand, Panasonic LX5 has a
10.0MP 1/1.63-inch (8.07 x 5.56 mm ) sized CCD sensor and features Venus Engine FHD processor.
Olympus E-PL7's sensor provides 6MP more than Panasonic LX5's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the E-PL7 and LX5 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus E-PL7 and Panasonic LX5 Cameras
As seen above, Olympus E-PL7 has a 5.0x Larger sensor area than Panasonic LX5. 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 Olympus E-PL7 and Panasonic LX5 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, E-PL7 has scored 72, 31 points higher than LX5.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Olympus E-PL7
72
22.7 bits
12.4 Evs
873 ISO
Panasonic LX5
41
19.6 bits
10.8 Evs
132 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
Olympus E-PL7
or the
Panasonic LX5 ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(Four Thirds versus 1/1.63-inch),
so compare them at the same framing rather than the same focal length.
Put the same focal length on the smaller sensor and it will show less depth of
field, not more, because it also crops tighter. The calculator shows the
full frame equivalent focal length for each body so you can match the framing.