Konica Minolta 7D has a
6.0MP APS-C (23.5 x 15.7 mm ) sized CCD sensor . On the other hand, Canon 40D has a
10.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor .
Below you can see the 7D and 40D sensor size comparison.
Sensor Size and Resolution Comparison image of Konica Minolta 7D and Canon 40D Cameras
As seen above, Konica Minolta 7D has a 1.1x Larger sensor area than Canon 40D. 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. Konica Minolta 7D and Canon 40D sensors have been tested by DxO and the results show that 40D has a better overall score of 64, 6 points higher compared to 7D's score of 58.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Konica Minolta 7D
58
21.2 bits
11.0 Evs
613 ISO
Canon 40D
64
22.1 bits
11.3 Evs
703 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
Konica Minolta 7D
or the
Canon 40D ,
including hyperfocal distance.
