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Help! Canon G15 Tethering Raspberry Pi/Windows 10

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Offline stews14

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Help! Canon G15 Tethering Raspberry Pi/Windows 10
« on: 30 / August / 2017, 00:54:06 »
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Hi

Recently started this project:
http://www.instructables.com/id/Raspberry-Pi-photo-booth-controller/

I have got my raspberry pi setup, and successfully installed chdk on my canon g15. My problem is that i cannot tether via USB to either my raspberry pi (or windows 10 desktop) in 'shooting mode' while also being detected by the computer.

I can connect/ be detected by both systems in either setup, and then as soon as i switch to shooting mode they 'lose' the connection, and as soon as i switch back to non-shooting mode they re-detect my camera.  :'(

This makes me think the issue is a setting in CHDK and not something unique to the Raspberry Pi/my desktop... am i missing something really obvious in the CHDK settings?

Thanks in advance
Ian

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Offline reyalp

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Re: Help! Canon G15 Tethering Raspberry Pi/Windows 10
« Reply #1 on: 30 / August / 2017, 01:21:59 »
Quote from: stews14 on 30 / August / 2017, 00:54:06
Hi

Recently started this project:
http://www.instructables.com/id/Raspberry-Pi-photo-booth-controller/

I have got my raspberry pi setup, and successfully installed chdk on my canon g15. My problem is that i cannot tether via USB to either my raspberry pi (or windows 10 desktop) in 'shooting mode' while also being detected by the computer.
What software are your trying to use to control the camera? Recent Canon cameras do not have the Canon API that gphoto supports, so to teather you must use the CHDK PTP Extension. gphoto may have some support for this, but I don't know how functional it is. You could use chdkptp https://www.assembla.com/spaces/chdkptp instead.

When you switch to shooting mode, are you trying to do it with physical camera controls, or using CHDK? If you are using CHDK to control the camera over USB, you must switch using chdk (the 'rec' command in chdkptp), rather than using the physical controls on the camera.
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