Zoom operation while shutter is open - Script Writing - CHDK Forum
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Zoom operation while shutter is open

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Offline yndesai

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Zoom operation while shutter is open
« on: 06 / December / 2012, 06:17:37 »
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I have just started using CHDK for a week now and I am too excited about it.
I wanted to click on specific type of pic where I wanted

A small zoom motor operation when the shutter is open to create radial motion blur.

Is it possible with the CHDK script and SX130IS.

Thanks in Advance.

YNDESAI
a happy user of CHDK
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Offline msl

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Re: Zoom operation while shutter is open
« Reply #1 on: 06 / December / 2012, 07:48:34 »
Here is (very old) thread about this topic: http://chdk.setepontos.com/index.php?topic=2518.0

Hth

msl
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Offline yndesai

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Re: Zoom operation while shutter is open
« Reply #2 on: 11 / December / 2012, 00:42:01 »
Thanks for pointing in that direction

I tried the script BUT could not get it working.
I am using SX130IS and this is what happens:

After shutter opens zoom operation starts
and camera stops All the LEDs goes blank and I need to
power on the camera.

I am still trying with various settings but no luck.
Can anyone help if he/she have successfully done this on SX130IS

Thanks in advance
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Offline outslider

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Re: Zoom operation while shutter is open
« Reply #3 on: 11 / December / 2012, 02:27:30 »
I tried on sx130  but without significant results. I had exactly the same problem - camera crashes. I haven't found a reason.

I have also tired focus changes during exposure and this works without any problems.
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if (2*b || !2*b) {
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Compile error: poor Yorick
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Offline yndesai

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Re: Zoom operation while shutter is open
« Reply #4 on: 11 / December / 2012, 23:19:13 »
which script did you use for focus changing. ?
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Offline outslider

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Re: Zoom operation while shutter is open
« Reply #5 on: 12 / December / 2012, 17:28:32 »
Here you have my and others story:

http://chdk.setepontos.com/index.php?topic=7286.0

Good luck! If you find a solution it will be welcome!
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if (2*b || !2*b) {
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Compile error: poor Yorick
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Offline yndesai

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Re: Zoom operation while shutter is open
« Reply #6 on: 22 / January / 2013, 12:24:22 »
Though the camera was getting switch off
I could save the RAW file but could not save the jpg file.
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