If it's possible to get away with one dark-frame shot per thunderstorm
and then match that against all the other exposures, it would free up
quite a lot of precious time. Last time I tried to shoot lightnings I
missed roughly 50% to the dark-frame exposures, so it's far from
pointless to investigate the possibilities.
The astrophoto people have been using digital since the first webcams
came around. They certainly had to do their own dark-frames.
Jostein
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Saving a dark frame together with actual exposure and processing it
later on a PC could be a way, but seems to be quite pointless, as it
still takes the time to do the second exposure, data processing
itself is not so time consuming, so camera is locked anyway.
teem
- Re: Noise reduction Jostein
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