Nikon D90 has a
12.0MP APS-C (23.6 x 15.8 mm ) sized CMOS sensor . On the other hand, Nikon Df has a
16.0MP Full frame (36 x 23.9 mm ) sized CMOS sensor and features Expeed 3 processor.
Below you can see the D90 and Df sensor size comparison.
As seen above, Nikon Df has a 2.3x Larger sensor area than Nikon D90. 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
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. Nikon D90 and Nikon Df sensors have been tested by DxO and the results show that Df has a better overall score of 89, 16 points higher compared to D90's score of 73.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D90 |
73 |
22.7 bits |
12.5 Evs |
977 ISO |
Nikon Df |
89 |
24.6 bits |
13.1 Evs |
3279 ISO |