Setting TV on half-shoot - LUA Scripting - CHDK Forum
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Setting TV on half-shoot

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Offline pawelo

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Setting TV on half-shoot
« on: 15 / October / 2012, 15:57:47 »
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Hello,

I was trying to write a script, which takes immediately two pictures with different (user selected) exposure time (to be able to shoot without tripod, with minimal shift of view). Unfortunately set_tv96_direct doesn't seem to work when shutter is half-pressed using shoot_full_only (take a picture and don't release shutter, set TV, take another picture). I'm using S3 IS. Is there any solution?
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Offline waterwingz

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Re: Setting TV on half-shoot
« Reply #1 on: 15 / October / 2012, 16:19:03 »
Please post the exact script you were using ?
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Offline reyalp

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Re: Setting TV on half-shoot
« Reply #2 on: 15 / October / 2012, 16:28:05 »
Quote from: pawelo on 15 / October / 2012, 15:57:47
Unfortunately set_tv96_direct doesn't seem to work when shutter is half-pressed using shoot_full_only (take a picture and don't release shutter, set TV, take another picture). I'm using S3 IS. Is there any solution?
Correct, exposure override functions must be called *before* halfshot. That's how they work.

You can wait until get_shooting() becomes true and set the TV propcase directly. Some discussion here: http://chdk.setepontos.com/index.php?topic=8602.msg90003#msg90003
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Offline waterwingz

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Re: Setting TV on half-shoot
« Reply #3 on: 15 / October / 2012, 16:56:52 »
Quote from: pawelo on 15 / October / 2012, 15:57:47
I was trying to write a script, which takes immediately two pictures with different (user selected) exposure time (to be able to shoot without tripod, with minimal shift of view).

You might just want to modify this :

http://chdk.wikia.com/wiki/HDR_Fast_Shooter
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Ported :   A1200    SD940   G10    Powershot N    G16
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