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G9 taking pictures at specific time of day?

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Offline aangold

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G9 taking pictures at specific time of day?
« on: 05 / July / 2009, 20:27:39 »
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Hello, and thanks to the developers of CHDK for all this excellent work.

I have installed CHDK on my G9, and it's working as advertised. I have also installed the accurate intervalometer with power-saving and pre-focus script. It too works just fine.

However, what I really want is not an intervalometer as such, but the ability to take shots at specific times of day over a period of months. I realize that the intervalometer allows me to do that, but it will also produce a lot of shots overnight and at other times that will be of no use to me, but which will fill up the card faster than I'd like.

I could not see a script that performed this task, and I just wondered whether anyone knew of the existence of one.

Thanks for any help you can give.
Adrian Angold.
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Offline reyalp

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Re: G9 taking pictures at specific time of day?
« Reply #1 on: 05 / July / 2009, 20:35:32 »
You could script it (both lua and ubasic have access to clock time), but you'll either need an external power supply or some kind of electrical/mechanical hack to turn the camera on and off. If you go the latter route, you could just as well have it take the picture too.
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Offline aangold

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Re: G9 taking pictures at specific time of day?
« Reply #2 on: 05 / July / 2009, 20:50:49 »
Thanks Reyalp. I appreciate the rapid response.

That's what I thought would be the case.

It would probably be fun to script it, but I'm afraid time won't allow me start learning Lua at this point! So I guess I'll stick with what I have and use the delete key a lot in post-processing.

I would be using the AC adapter for power, and I'm certainly not up to hacking the hardware. Kind of you to be thinking ahead for me, though.

Best wishes.
Adrian.
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Offline aangold

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Re: G9 taking pictures at specific time of day?
« Reply #3 on: 05 / July / 2009, 20:53:54 »
Oh, and I should say a big thank-you to Fraser McCrossan for writing his intervalometer script. It is a great addition to the G9's functionality.

Adrian.
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Offline reyalp

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Re: G9 taking pictures at specific time of day?
« Reply #4 on: 05 / July / 2009, 21:37:16 »
Quote from: aangold on 05 / July / 2009, 20:50:49
It would probably be fun to script it, but I'm afraid time won't allow me start learning Lua at this point! So I guess I'll stick with what I have and use the delete key a lot in post-processing.
Not sure which script you are using but you should see how long an interval you can set. You may be able to set 24 hours, and then just kick it off at the right time. Or at least set it to once every few hours so you don't have so many images to sort out.

You might also want to check out: http://chdk.setepontos.com/index.php/topic,3207.0.html
 
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Offline aangold

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Re: G9 taking pictures at specific time of day?
« Reply #5 on: 05 / July / 2009, 23:00:56 »
The script is called "accurate intervalometer with power-saving and pre-focus" in the list of scripts.

As far as I can see it supports intervals up to 99,999 seconds, so that's long enough for once a day. And one can certainly reduce the number of unwanted intervals significantly.

Thanks for the link. I went over there, and I've just tested that on my G9 with a short on/off interval and it seems to work fine (Grant Coady developed it for the A590 - also a Digic-III camera). So that goes a long way towards dealing with my issue. I emailed him with this information, and the suggestion that he had already done most of the spadework for producing a script the would allow for a group of specific times to be set.  So perhaps he will like the idea.

Thanks again.
Adrian.
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Offline Microfunguy

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Re: G9 taking pictures at specific time of day?
« Reply #6 on: 07 / July / 2009, 05:22:59 »
SDM 1.81 to be released in a few weeks has a new uBasic command 'sleep_until' or 'start_time' that allows you to start any operation at a particular time.
After completing the operation, you can then sleep (with display off) for 24 hours.


David
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