Faster shutter speed with Motion Detection - Script Writing - CHDK Forum
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Faster shutter speed with Motion Detection

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Offline cyclonedr

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Faster shutter speed with Motion Detection
« on: 13 / September / 2008, 13:52:07 »
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Hi all,
  I've taken lightning photos with fudgeys script, but I've noticed that the average shutter speed was 1/8 of a second.  I've also done tests where I wave my hand in front of the camera, and it takes a picture, but the shutter speed to slow and my hands either a blur or else not there; being around 1/8-1/12 of a second.  So how can I make this like 1/200 of a second, etc...
thanks for any help
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Offline fudgey

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Re: Faster shutter speed with Motion Detection
« Reply #1 on: 13 / September / 2008, 14:53:10 »
Use exposure overrides from CHDK menus to set ISO higher, Av wider and Tv faster.

MD will still use autoexposure (it needs a bright image on the LCD during detection), but CHDK will override exposure once MD shoots.


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Offline cyclonedr

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Re: Faster shutter speed with Motion Detection
« Reply #2 on: 13 / September / 2008, 16:21:01 »
Ok, did that, thanks.  I was able to get decent shots up to about 1/200 of a second.  I'm still not exactly sure how to use the ISO overrides. 
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