Canon 4000D has a
18.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features Digic 4+ processor. On the other hand, Pentax K-500 has a
16.0MP APS-C (23.7 x 15.7 mm ) sized CMOS sensor and features PRIME M processor.
Below you can see the 4000D and K-500 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 4000D and Pentax K-500 Cameras
As seen above, Pentax K-500 has a 1.1x Larger sensor area than Canon 4000D. 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. Canon 4000D and Pentax K-500 sensors have been tested by DxO and the results show that K-500 has a better overall score of 79, 16 points higher compared to 4000D's score of 63.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon 4000D
63
21.9 bits
11.4 Evs
695 ISO
Pentax K-500
79
23.7 bits
13.1 Evs
1087 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
Canon 4000D
or the
Pentax K-500 ,
including hyperfocal distance.
