Both Konica Minolta 5D and Konica Minolta 7D have APS-C sized 6.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the 5D and 7D sensor size comparison.
Sensor Size and Resolution Comparison image of Konica Minolta 5D and Konica Minolta 7D Cameras
Konica Minolta 5D and Konica Minolta 7D 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.
DxOMark Sensor Scores
At Camera Decision, we also look at Dxo Mark sensors when available as we think it is a good indicator of image quality.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Konica Minolta 5D
58
21.3 bits
11.1 Evs
605 ISO
Konica Minolta 7D
58
21.2 bits
11.0 Evs
613 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 5D
or the
Konica Minolta 7D ,
including hyperfocal distance.
