Godfrey alluded in another post to the fact that there is a possibility
of sensor reflection affecting an image. This hadn't previously
occurred to me, but makes perfect sense.
So that begs the question; is it possible that some of what we often
think we see as CA is actually a reflection off of the CCD back to the
rear element, and from the rear element back to the CCD?
The CCD is a pretty reflective surface. I suppose that's a necessary
evil. This is asking a question of speculation... Is there any point
for camera manufacturers to investigate the possibility of
non-reflective CCD's? Or is that simply an impossibility?
- Sensor reflection David Oswald
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