As all detector arrays, digital sensors have a fingerprint/signature/profile [however you look at it] that can affect noise/(d)efficiency/colour etc. This used

As all detector arrays, digital sensors have a fingerprint/signature/profile [however you look at it] that can affect noise/(d)efficiency/colour etc. This used to be all too apparent, even Kodak digital cameras had a correction-filter file calibrated for each camera to adjust white balance etc. that came with the camera.