Sangre De Cristo said:
I don't know about it's a scratch on the lens, or that the cameras necessarily need to
have a lens shade on them, & it doesn't really look like the camera was particularly
pointed too much toward the sun. The appearance of different auras vary some.
Looks like there could be alignments. Even if it isn't an aura, it's an interesting pic.
If the pic was taken with an Optio W series, they have a pretty small plastic watertight
lens cover that's made inset into the body, so they're not very easily touched or scratched.
Sunspots, streaks, or glare I believe look different. This looks more likely a weak aura, maybe
at the beginning, or ending of it, since they occur in a split second or so, & the W's camera's
MAX shutter speed is 1/2000 second, undoubtedly at a slightly different rate than the aura.
The light sensitivity ISO has an Auto Mode setting in the W10, W20, W30 models, etc. ,
can be adjusted Manually, & seem to vary some.
W10 Light Sensitivity
Iso 64, Iso 800, Iso Auto, Iso 400, Iso 200, Iso 100
What sandy1 did experimenting with different cameras & has figured out with the
underwater W model lense & filter really is simply a sort of high-tech science.