Nikon D750 has a
24.0MP Full frame (35.9 x 24 mm ) sized CMOS sensor and features Expeed 4 processor. On the other hand, Nikon D700 has a
12.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Expeed processor.
Nikon D750's sensor provides 12MP more than Nikon D700'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 D750 and D700 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon D750 and Nikon D700 Cameras
Nikon D750 and Nikon D700 have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
DxOMark Sensor Scores
Both Nikon D750 and Nikon D700 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, D750 has scored 93, 13 points higher than D700.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Nikon D750
93
24.8 bits
14.5 Evs
2956 ISO
Nikon D700
80
23.5 bits
12.2 Evs
2303 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 D750
or the
Nikon D700 ,
including hyperfocal distance.
