Strange artifacts on digital images
Mar 19, 2018 20:54:51 #
My Sony A100 produces pink artifacts on digital photos, wherever highlights are overexposed. (see attached photo). The camera is old and if I managed not to blow highlights (or approach blowing), I can avoid them, but if there is anything I can do to fix. I recognize it is an old camera and that there may may be nothing that can be done.
Mar 19, 2018 23:14:49 #
Mar 20, 2018 06:46:08 #
catchlight..
Loc: Wisconsin USA- Halden Norway
Looks like it could possibly be a lens issue. Did you try another? Easy to remove with lightroom or Photoshop with the aberration correction sliders. lens aberration correction in camera may be available but I am not sure with your camera...
Mar 20, 2018 12:33:44 #
My 14-year old camera does the same thing. What you are seeing is how digital cameras typically used to handle blown out highlights - producing strange colors in those areas, determined by which color channel is maxed out first for those pixels. In modern cameras, the blowout areas are usually rendered as a somewhat more appealing, appropriate color for the area blown out. In your example, a modern digital camera would have likely rendered the blown highlights as white, not fuchsia.
Mar 20, 2018 12:56:19 #
oisin59 wrote:
My Sony A100 produces pink artifacts on digital photos, wherever highlights are overexposed. (see attached photo). The camera is old and if I managed not to blow highlights (or approach blowing), I can avoid them, but if there is anything I can do to fix. I recognize it is an old camera and that there may may be nothing that can be done.
Failing sensor. This is pretty common. Avoid overexposure until you can replace the camera. It's only going to get worse.
Mar 20, 2018 12:56:27 #
wdross
Loc: Castle Rock, Colorado
oisin59 wrote:
My Sony A100 produces pink artifacts on digital photos, wherever highlights are overexposed. (see attached photo). The camera is old and if I managed not to blow highlights (or approach blowing), I can avoid them, but if there is anything I can do to fix. I recognize it is an old camera and that there may may be nothing that can be done.
You might try and see if there is a firmware update that addresses this, but the camera might not have one being as it is older.
Mar 20, 2018 13:02:20 #
oisin59 wrote:
My Sony A100 produces pink artifacts on digital photos, wherever highlights are overexposed. (see attached photo). The camera is old and if I managed not to blow highlights (or approach blowing), I can avoid them, but if there is anything I can do to fix. I recognize it is an old camera and that there may may be nothing that can be done.
Turn off the highlight Alert!
Mar 21, 2018 00:29:19 #
Thanks. I suspected as much. As I have just bought a Canon 80d, it isn't a big issue. I try to keep my highlights in check anyway. What's more problematic is the autofocus, which can't make up its mind where to focus. But for a 13 year old camera (and second string--if not third--at that) it is doing ok.
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