Start Up Camera at a Speficied Focal Length - Feature Requests - CHDK Forum
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Start Up Camera at a Speficied Focal Length

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Offline jim2386

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Start Up Camera at a Speficied Focal Length
« on: 13 / November / 2013, 13:29:13 »
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I have a very specific need for my G15 to start up not at full wide angle when powering on. Is there an easy script or menu feature I could use so that I could specify a focal length and have the camera zoom to that length on power on?

I have a very specific focal length I need to use for my photography and this would be very helpful as opposed to powering on and then bumping the zoom button until I get it exactly where I want it.  Is this possible?

Thanks!
Jim
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Offline srsa_4c

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Re: Start Up Camera at a Speficied Focal Length
« Reply #1 on: 13 / November / 2013, 13:55:06 »
Quote from: jim2386 on 13 / November / 2013, 13:29:13
I have a very specific focal length I need to use for my photography and this would be very helpful as opposed to powering on and then bumping the zoom button until I get it exactly where I want it.  Is this possible?
I think you can use C mode (on the mode dial) for registering a specific zoom position, no need to use a script for this on this camera.
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Offline waterwingz

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Re: Start Up Camera at a Speficied Focal Length
« Reply #2 on: 13 / November / 2013, 14:14:36 »
Quote from: jim2386 on 13 / November / 2013, 13:29:13
I have a very specific need for my G15 to start up not at full wide angle when powering on. Is there an easy script or menu feature I could use so that I could specify a focal length and have the camera zoom to that length on power on.   I have a very specific focal length I need to use for my photography and this would be very helpful as opposed to powering on and then bumping the zoom button until I get it exactly where I want it.  Is this possible?
See the third post in this thread  (although srsa_4c has a good point) :

http://chdk.setepontos.com/index.php?topic=10892
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Offline jim2386

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Re: Start Up Camera at a Speficied Focal Length
« Reply #3 on: 13 / November / 2013, 17:46:33 »
'Wingz,

This is very very very close to what I'm looking for. One minor caveat...this locks the zoom once the script is run. I'd like it to zoom to a specified location and then if I want to adjust it from there I can use the zoom like normal. Is that a quick change in the script?

*EDIT* I stand correct, Custom mode also performs this feature

Thank you so much!
Jim
« Last Edit: 13 / November / 2013, 18:57:21 by jim2386 »
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Online philmoz

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Re: Start Up Camera at a Speficied Focal Length
« Reply #4 on: 13 / November / 2013, 17:50:26 »
Quote from: jim2386 on 13 / November / 2013, 17:46:33
To the point of using Custom, the wonderful people at Canon lock the C1 setting to be Av mode and C2 to be P mode. I shoot in M mode so I'm SOL in that method. However, for those who operate in non-shutter priority modes, this is a valid option.

No they don't - read the manual.

The mode in C1 & C2 is whatever mode you were in when you saved the C1/C2 settings. If you want to program C1/C2 to use M mode then select M before saving C1/C2.

Phil.
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Offline waterwingz

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Re: Start Up Camera at a Speficied Focal Length
« Reply #5 on: 13 / November / 2013, 18:48:49 »
Quote from: jim2386 on 13 / November / 2013, 17:46:33
One minor caveat...this locks the zoom once the script is run.
Well, it's not supposed to.  And I tested on three of my cameras and it does not do that (didn't check the SX50 though).

Quote
I'd like it to zoom to a specified location and then if I want to adjust it from there I can use the zoom like normal. Is that a quick change in the script?
Sound like it might be a another bug in the G15 port.  Nothing I can think if to fix that from a script.  My G10 works as you describe when I run the script.

More info here > Can't adjust zoom after set_zoom()
« Last Edit: 13 / November / 2013, 18:55:05 by waterwingz »
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Ported :   A1200    SD940   G10    Powershot N    G16
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Offline jim2386

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Re: Start Up Camera at a Speficied Focal Length
« Reply #6 on: 13 / November / 2013, 18:58:12 »
Phil,

You're right. I stand corrected. I bow in the aura of your awesomeness and wisdom...only outshone, surely, by your good looks.

 :)

-Jim
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