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new to CHDK - questions on intervalometer

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Offline reemas

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new to CHDK - questions on intervalometer
« on: 09 / May / 2010, 02:58:34 »
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Hey guys, I just installed this script:
--> Y AAI yet another accurate intervalometer

I wanted to find out more about the parameters and also, how I can get it to accurately shoot every second as I selected. Currently it shoots every 3-5 seconds, but my guess is that is just the cameras fault because it has to write to the card?

I have a PowerShot S90. Any help would be greatly appreciated as I am going on a trip in a couple days and really want this working in time. Thanks!
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Offline reyalp

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Re: new to CHDK - questions on intervalometer
« Reply #1 on: 09 / May / 2010, 03:14:35 »
Quote from: reemas on 09 / May / 2010, 02:58:34
I wanted to find out more about the parameters and also, how I can get it to accurately shoot every second as I selected.
CHDK cannot make your camera shoot any faster than the hardware is capable of. According to http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&fcategoryid=144&modelid=19210#ModelTechSpecsAct
the s90 is capable of 0.9FPS in continuous mode (without AF between shots) and 0.6 FPS with AF.

You can expect that an intervalometer script that does not use canons continuous mode will generally be a bit slower. If you turn on raw or DNG, it will be much slower.


Edit:
Shooting in high iso/low light mode will increase the shooting speed, to 2.1 FPS according to canons specs, at the cost of half resolution and reduced image quality. You can probably get some quality back by using CHDKs ISO override to keep the actual ISO low while shooting in this mode.
« Last Edit: 09 / May / 2010, 03:17:15 by reyalp »
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Offline reemas

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Re: new to CHDK - questions on intervalometer
« Reply #2 on: 09 / May / 2010, 03:16:44 »
Thanks for the info - that's kinda what I was thinking too.

Also, any idea why I can set all these parameters to negative numbers like -13?
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Offline reyalp

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Re: new to CHDK - questions on intervalometer
« Reply #3 on: 09 / May / 2010, 03:27:06 »
Quote from: reemas on 09 / May / 2010, 03:16:44
Thanks for the info - that's kinda what I was thinking too.

Also, any idea why I can set all these parameters to negative numbers like -13?
If you are talking about script parameters, they are just numbers to be passed to the script. What ranges are valid are determined by the individual script, and CHDK doesn't know anything about this.

Even in CHDK menus, you should not assume that a value makes sense just because you can enter it.
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Offline reemas

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Re: new to CHDK - questions on intervalometer
« Reply #4 on: 09 / May / 2010, 03:33:50 »
Got it. That's what the H stands for.
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