Sony a5100 has a
24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz X processor. On the other hand, Nikon 1 AW1 has a
14.0MP 1-inch (13.2 x 8.8 mm ) sized CMOS sensor and features EXPEED 3A processor.
Sony a5100's sensor provides 10MP more than Nikon 1 AW1'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 a5100 and 1 AW1 sensor size comparison.
Sensor Size and Resolution Comparison image of Sony a5100 and Nikon 1 AW1 Cameras
As seen above, Sony a5100 has a 3.2x Larger sensor area than Nikon 1 AW1. 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 Sony a5100 and Nikon 1 AW1 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, a5100 has scored 80, 29 points higher than 1 AW1.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Sony a5100
80
23.8 bits
12.7 Evs
1347 ISO
Nikon 1 AW1
51
20.2 bits
10.9 Evs
428 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
Sony a5100
or the
Nikon 1 AW1 ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(APS-C versus 1-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.