Motion Detection for lightning photography? - Script Writing - CHDK Forum
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Motion Detection for lightning photography?

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Offline georg2011

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Motion Detection for lightning photography?
« on: 28 / August / 2011, 13:04:42 »
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Offline funnel

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Re: Motion Detection for lightning photography?
« Reply #1 on: 28 / August / 2011, 15:20:11 »
Quote from: georg2011 on 28 / August / 2011, 13:04:42

Where can I find a motion detection script for ligtning photography?
(Canon SX230HS)

I use this one on sx220 http://chdk.wikia.com/wiki/UBASIC/Scripts:Lightning_script_--_Fudgey

Quote
My second question ist how it is possible to do a HDR photo of a lightning?
http://chdk.wikia.com/index.php?title=Samples:_Lightning_photography&image=Gerroa-jpg

The best option is using the MD burst script and
-set Burst/preview to more than 3,
-enable bracketing in continuous mode (I would use Av or ISO bracketing because it's faster)
-set the camera in High speed burst mode to get fast continuous shooting (9 pics/s) or you can use the normal continuous mode if you want.

For indoor testing the threshold set to 40 seems to be ok, for lightning I set it to 20.

You'll have to play with it some time to find the best settings.
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Offline outslider

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Re: Motion Detection for lightning photography?
« Reply #2 on: 31 / August / 2011, 11:21:18 »
You can also make an HDR image from single RAW file - you need to make a few images from one raw using different exposures.
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