Not only do we WANT the shadows; but, we NEED the shadows to give life to the end results. The shadows will still be there even when we judiciously add more light, since we simply go with faster shutter speeds and the CCD will have less time time to gather light.
But, what is intriguing, is that CCD's might behave VERY differently when they capture quickly than when they are forced to capture less quickly.
We know that individual CCD cells gather light independently which results in at least some difference from pixel to pixel which could result in 'noise'. Are those differences minimized when we add more light and expose the CCD for a shorter period or are they magnified? We can only experiment to try to find out since manufacturers of cameras. like Olympus, INSIST that their cameras (E-10) have VERY little noise when anyone with a grain of sense and just one good eye knows that's a bald face lie. (LOL)
But, what is intriguing, is that CCD's might behave VERY differently when they capture quickly than when they are forced to capture less quickly.
We know that individual CCD cells gather light independently which results in at least some difference from pixel to pixel which could result in 'noise'. Are those differences minimized when we add more light and expose the CCD for a shorter period or are they magnified? We can only experiment to try to find out since manufacturers of cameras. like Olympus, INSIST that their cameras (E-10) have VERY little noise when anyone with a grain of sense and just one good eye knows that's a bald face lie. (LOL)
the question is if you want the shadows as part of the imageI find I can easily live with the image I get in the lighted
portion of the frame; but as the picture transitions to shadow -
take a headshot of someone looking out the window, notice the
gradual transition to shadow along the face and how weird the skin
becomes - that's where the CCD noise bothers me. Take the same
shot, but use fill flash to get more light on that cheek and it
looks much better.
Software can probably be made to greatly help this problem - once
it has been clearly defined. For the lighting forum, if this is
something more people agree is a problem, we might consider ways to
light a scene to avoid these transitional shadow areas.
-Walt
Tom,
can u give us a little more detail.
Do u avoid that by using more light and faster shutter speed ?
Thanks
gmd
or not.. If not .. well use more light..
If yes ... thats a different story ...
gmd