Re: D90 : activate Liveview with USB for ManualFocus setting

Hi,

On Wed, Jul 12, 2017 at 03:16:20PM +0200, Robert VISEUR wrote:
> Hi,
> 
> Thank you very much for your help.
> 
> According to my experience with Nikon D90, Nikon D300 and Canon EOS 500, the
> support for D90 in gphoto2 is problematic, for example
> capture-image-and-download doesn't work (but it is fine with Canon EOS), I
> must do a capture-image followed by a get-all-images with a pause between
> the two commands.
> 
> In the example that was given below, capture-image doesn't work because of
> "PTP Device Busy" error. Do you have a feedback about that ?
> 
> I intend to test three things :
> 
> - Update the firmware of the D90 in order to check if it solves problems.
> - Test the proposed code with a Nikon D750 in order to compare the behavior
> with Nikon D90 (I lack the appropriate squared USB cable).
> - Test the proposed code with a Canon EOS in order to compare the behavior
> with Nikon.
> 
> If you are interested in my tests I will post on the user mailing list after
> doing them.

I took out my D90 and tried it ... 

$ gphoto2 --capture-preview --capture-image-and-download --capture-preview
File capture_preview.jpg exists. Overwrite? [y|n] y
Saving file as capture_preview.jpg
New file is in location /capt0000.jpg on the camera
Saving file as capt0000.jpg
Deleting file /capt0000.jpg on the camera

*** Error ***
Nikon enable liveview failed (0xa004: Invalid Status)
$ 

reenabling live view does not seem to work, have to check that.

But simple gphoto2  --capture-image-and-download  works.

Ciao, Marcus

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