What is the best script for Time-Lapse Astropphotography??? - page 3 - Script Writing - CHDK Forum
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What is the best script for Time-Lapse Astropphotography???

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Offline waterwingz

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Re: What is the best script for Time-Lapse Astropphotography???
« Reply #20 on: 22 / October / 2012, 00:06:41 »
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Quote from: MeBeJedi on 21 / October / 2012, 23:14:57
This script gives me an error. It says the camera is shaking (should I turn that off manually?) And I get a yellow square in the middle of the screen with an exclamation point.
Nothing to do with the script.  That's your camera telling you that you need a steady mount (like a tripod) to take long exposures.
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Offline MeBeJedi

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Re: What is the best script for Time-Lapse Astropphotography???
« Reply #21 on: 22 / October / 2012, 00:16:33 »
unfortunately, it was on a tripod, but there were fast-moving clouds. Maybe that's what was setting off the warning.
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Offline waterwingz

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Re: What is the best script for Time-Lapse Astropphotography???
« Reply #22 on: 22 / October / 2012, 00:20:51 »
Quote from: MeBeJedi on 22 / October / 2012, 00:16:33
unfortunately, it was on a tripod, but there were fast-moving clouds. Maybe that's what was setting off the warning.
Strange.  Did it take pictures regardless of the warning ? 

Normally the Canon cams might give the "moving hands" warning icon at slow shutter speeds but you can ignore that.  A yellow error message usually means it could not take a shot - often because it could not focus.

What camera are you using ?

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Offline MeBeJedi

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Re: What is the best script for Time-Lapse Astropphotography???
« Reply #23 on: 22 / October / 2012, 08:23:07 »
Canon Powershot ELPH 300

Another question. In these scripts, what are the commands for taking JPGs versus taking RAW? Are they different between BAS and LUA?
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Offline waterwingz

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Re: What is the best script for Time-Lapse Astropphotography???
« Reply #24 on: 22 / October / 2012, 10:08:24 »
Quote from: MeBeJedi on 22 / October / 2012, 08:23:07
Another question. In these scripts, what are the commands for taking JPGs versus taking RAW? Are they different between BAS and LUA?
The camera always takes JPG - there is no way to turn that off.

In uBASIC  Raw/DNG is enabled  with
set_raw 1
and disabled with
set_raw 0

In LuaRaw/DNG is enabled  with
set_raw(1)
and disabled with
set_raw(0)

You might find this page interesting.

http://chdk.wikia.com/wiki/CHDK_Scripting_Cross_Reference_Page
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Offline outslider

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Re: What is the best script for Time-Lapse Astropphotography???
« Reply #25 on: 22 / October / 2012, 11:07:45 »
Quote from: waterwingz on 22 / October / 2012, 00:20:51
Quote from: MeBeJedi on 22 / October / 2012, 00:16:33
unfortunately, it was on a tripod, but there were fast-moving clouds. Maybe that's what was setting off the warning.
Strange.  Did it take pictures regardless of the warning ? 

Normally the Canon cams might give the "moving hands" warning icon at slow shutter speeds but you can ignore that.  A yellow error message usually means it could not take a shot - often because it could not focus.

What camera are you using ?



Just found that and I have to note: for example sx130is takes picture even when it can't find focus. The yellow frame with '!' sign is displayed, but you can still take photo with shutter button.
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Offline waterwingz

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Re: What is the best script for Time-Lapse Astropphotography???
« Reply #26 on: 22 / October / 2012, 11:48:07 »
Quote from: outslider on 22 / October / 2012, 11:07:45
Just found that and I have to note: for example sx130is takes picture even when it can't find focus. The yellow frame with '!' sign is displayed, but you can still take photo with shutter button.
Sound like being able to force manual focus to infinity would be good here but it seems almost every camera does that differently.
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Offline MeBeJedi

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Re: What is the best script for Time-Lapse Astropphotography???
« Reply #27 on: 22 / October / 2012, 13:22:37 »
I swear I had focus set to infinity. I'll try it again.

"The camera always takes JPG - there is no way to turn that off."

Except when RAW is on, correct? It's either one or the other? (I'm just debating if I want to work with RAW or not.)

"You might find this page interesting.
http://chdk.wikia.com/wiki/CHDK_Scripting_Cross_Reference_Page"

Ooh, perfect. Thanks!  8)
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Offline reyalp

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Re: What is the best script for Time-Lapse Astropphotography???
« Reply #28 on: 22 / October / 2012, 16:29:52 »
Quote from: MeBeJedi on 22 / October / 2012, 13:22:37
Except when RAW is on, correct? It's either one or the other? (I'm just debating if I want to work with RAW or not.)
No, when CHDK raw is enabled, the jpeg is still saved, the raw is an additional file. On the few cameras where the Canon firmware supports raw natively, I think you can shoot raw only.
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