Samsung NX500 has a
28.0MP APS-C (23.5 x 15.7 mm ) sized BSI-CMOS sensor and features DRIMe 5 processor. On the other hand, Fujifilm X-A7 has a
24.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor .
Another difference between these two cameras is that Samsung NX500's sensor lacks anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the NX500 and X-A7 sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung NX500 and Fujifilm X-A7 Cameras
Samsung NX500 and Fujifilm X-A7 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 Fujifilm X-A7 has 16% larger pixel area (15.37µm 2 vs 13.18µm 2 ) compared to Samsung NX500, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
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
Samsung NX500
or the
Fujifilm X-A7 ,
including hyperfocal distance.
