Configurable dark frame substraction - Feature Requests - CHDK Forum
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Configurable dark frame substraction

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Offline a710is

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Configurable dark frame substraction
« on: 22 / September / 2008, 10:44:57 »
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I can see that "dark frame substraction" only has 3 modes: on, off and auto.
would it be possible to have it basically in a configurable "auto" mode in which the substraction happens only for exposures of more than a chosen exposure time?
such as configuring it for x seconds and having it take pictures with the substraction "off" for exposures of under x seconds and substraction "on" for exposures of over x seconds
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Offline reyalp

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Re: Configurable dark frame substraction
« Reply #1 on: 22 / September / 2008, 15:28:28 »
Quote from: a710is on 22 / September / 2008, 10:44:57
I can see that "dark frame substraction" only has 3 modes: on, off and auto.
would it be possible to have it basically in a configurable "auto" mode in which the substraction happens only for exposures of more than a chosen exposure time?
such as configuring it for x seconds and having it take pictures with the substraction "off" for exposures of under x seconds and substraction "on" for exposures of over x seconds
It shouldn't be too hard to add. That is essentially what the canon firmware does in auto, aside from not letting you set x and (on some cameras at least) factoring in other things like sensor temperature.

You could also do this with a script.
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Offline PS

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Re: Configurable dark frame substraction
« Reply #2 on: 24 / December / 2008, 15:04:03 »
+1 for this feature.
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