Tethered shooting

fma

« on: 12 / November / 2009, 08:46:34 »

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Hi,

I would like to know if it is possible to do tethered shooting using CHDK firmware though camera USB port?

I would like to be able to ask the camera to take a picture with a certain bias exposure value ; I also need to know when the shooting process is over, and also be able to download the picture (or maybe just the thumbnail)...

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reyalp

13059

Re: Tethered shooting

« Reply #1 on: 12 / November / 2009, 17:10:35 »

Some cameras support this without CHDK. See http://www.usa.canon.com/consumer/controller?act=SDKHomePageAct&keycode=Sdk_Lic&fcategoryid=314&modelid=7474&id=3464

There is also work ongoing to support this within CHDK, but it is not finished yet. See http://chdk.setepontos.com/index.php/topic,4338.0.html

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Don't forget what the H stands for.

fma

Re: Tethered shooting

« Reply #2 on: 12 / November / 2009, 17:40:41 »

Thanks for the links!

Unfortunally, Canon SDK only works under Windows/MacOS, and I mainly use Linux... But I'm pleased to ear that such feature will be supported in the future in CHDK

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reyalp

13059

Re: Tethered shooting

« Reply #3 on: 12 / November / 2009, 18:10:41 »

AFAIK gphoto supports this at least on some of the cameras that the canon SDK works on.

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Don't forget what the H stands for.

fma

« Reply #4 on: 13 / November / 2009, 02:34:25 »

True. But it does not (yet) provide a common way to set the camera params (some camera require "2.5", others "2 1/2"...); this should change it the next versions.

But I think that having a good and universal API for tethered shooting in CHDK could be nice.

Maybe, one day, camera makers will do that in their original firmware! I don't know how much time they spend to keep their SDK up-to-date between all their models...

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