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G12 manual focus with the screen off

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G12 manual focus with the screen off
« on: 22 / November / 2012, 17:30:42 »
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The G12 has great manual focus control, but as soon as the screen sleeps/is turned off, the camera reverts to autofocus mode, which kills the deal for certain timelapse applications.  Has anybody encountered a way to maintain manual focus with the G12's screen turned off? 

Thanks,

S.

Re: G12 manual focus with the screen off
« Reply #1 on: 22 / November / 2012, 18:05:12 »
Use the set_aflock() script function ?

http://chdk.wikia.com/wiki/Script_commands#set_aflock
Ported :   A1200    SD940   G10    Powershot N    G16

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Offline reyalp

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Re: G12 manual focus with the screen off
« Reply #2 on: 22 / November / 2012, 18:08:03 »
Use the set_aflock() script function ?

http://chdk.wikia.com/wiki/Script_commands#set_aflock
This is probably also reset when the screen turns off.

I believe this problem was discussed elsewhere (G12 development or release thread ?) without any solution.
Don't forget what the H stands for.

Re: G12 manual focus with the screen off
« Reply #3 on: 22 / November / 2012, 18:10:45 »
This is probably also reset when the screen turns off.
That's too bad - the posted link praises the function for not doing that.  Hopefully its just a G12 issue ?
Ported :   A1200    SD940   G10    Powershot N    G16


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Offline philmoz

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Re: G12 manual focus with the screen off
« Reply #4 on: 22 / November / 2012, 18:16:52 »
This is probably also reset when the screen turns off.
That's too bad - the posted link praises the function for not doing that.  Hopefully its just a G12 issue ?

All G series with optical viewfinder do this.
Once the screen is turned off, by closing it or with the Disp button, the camera reverts to AF.

I suspect Canons logic is that there is no way to focus with the optical viewfinder so MF is not needed.

Phil.
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Re: G12 manual focus with the screen off
« Reply #5 on: 22 / November / 2012, 19:04:22 »
All G series with optical viewfinder do this. Once the screen is turned off, by closing it or with the Disp button, the camera reverts to AF.I suspect Canons logic is that there is no way to focus with the optical viewfinder so MF is not needed.
Any idea if this applies to all Canon P&S cams with OVF's ?
Ported :   A1200    SD940   G10    Powershot N    G16

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Offline reyalp

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Re: G12 manual focus with the screen off
« Reply #6 on: 22 / November / 2012, 19:33:16 »
Any idea if this applies to all Canon P&S cams with OVF's ?
I suspect so. It's true on my A540.

On my D10 (no OVF), MF is lost when the the camera goes into display off mode, but "focus at infinity" mode is not.
Don't forget what the H stands for.

 

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