I have worked within the camera accessing the RAW data and it's painfully slow. All I needed was an aproximate histogram, so I was considering only one 1/1000th of the pixels and disregarding the difference in RGB (ignoring the bayer pattern in the RAW data). With all these simplifications, it takes about a second to build the histogram. If I were to process all the pixels it would take about 1.000 seconds, about a quarter of an hour.
You should be able to do much better.
The stuff on IS control was in http://chdk.setepontos.com/index.php/topic,1365.0.html
Depending on zoom, shifting tens of pixels would be enough to get the maximum 64 sec exposure without trails.
Near the pole the motion is anyway so small that stars motion it's usually not a problem.Actually, you have to work hard to get star trails around the pole...
Started by jetzt
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Started by vine
Creative Uses of CHDK
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Hello, I'm a NEWBIE - HELP!! (Newbies assistance, User Guides and thank you notes)
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Completed and Working Scripts