Both Sony NEX-7 and Sony A6600 have APS-C sized 24.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the NEX-7 and A6600 sensor size comparison.
Sensor Size and Resolution Comparison image of Sony NEX-7 and Sony A6600 Cameras
Sony NEX-7 and Sony A6600 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.
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. Sony NEX-7 and Sony A6600 sensors have been tested by DxO and the results show that A6600 has a better overall score of 82, 1 points higher compared to NEX-7's score of 81.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Sony NEX-7
81
24.1 bits
13.4 Evs
1016 ISO
Sony A6600
82
23.8 bits
13.4 Evs
1497 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 NEX-7
or the
Sony A6600 ,
including hyperfocal distance.
