Nikon D7500 has a
21.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor and features Expeed 5 processor. On the other hand, Samsung NX1 has a
28.0MP APS-C (23.5 x 15.7 mm ) sized BSI-CMOS sensor and features DRIMe 5 processor.
Samsung NX1's sensor provides 7MP more than Nikon D7500'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.
Another similarity between these two cameras is that both Samsung NX1 and Nikon D7500 sensors lack anti-alias (Low-Pass) filters. 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 D7500 and NX1 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon D7500 and Samsung NX1 Cameras
Nikon D7500 and Samsung NX1 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 Nikon D7500 has 35% larger pixel area compared to Samsung NX1, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Nikon D7500 and Samsung NX1 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, D7500 has scored 86, 3 points higher than NX1.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Nikon D7500
86
24.3 bits
14.0 Evs
1483 ISO
Samsung NX1
83
24.2 bits
13.2 Evs
1363 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
Nikon D7500
or the
Samsung NX1 ,
including hyperfocal distance.
