Storing configuration widget changes permanently on Nikon cameras

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Storing configuration widget changes permanently on Nikon cameras

unclebob
I noticed some unexpected behavior when storing configuration widgets on Nikon cameras via the gphoto API:
The camera doesn't store the change permanently. It does store it if you switch off the camera manually after applying the change, but if the power fails before a manual shutdown, the configuration is lost and the previous configuration is set when turning the camera back on. Since we're mostly configuring our cameras remotely, switching the camera off manually obviously isn't an option.
I have not tested the cli or with other cameras than Nikon, so the behavior might be different there.

Other tools like Nikons own camera controll pro can store changes permanently, so this does not seem to be an issue with the cameras themselves.

I'm hesitant to call this a bug, because there's a possibility that I'm missing an API call that would make the changes permanent, but I can't find any mentions of such a function in the API docs. If there is, I'd be thankful if you could tell me how it's called.
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Re: Storing configuration widget changes permanently on Nikon cameras

Marcus Meissner-4
Hi,

On Mon, Feb 20, 2017 at 02:16:12AM -0700, unclebob wrote:

> I noticed some unexpected behavior when storing configuration widgets on
> Nikon cameras via the gphoto API:
> The camera doesn't store the change permanently. It does store it if you
> switch off the camera manually after applying the change, but if the power
> fails before a manual shutdown, the configuration is lost and the previous
> configuration is set when turning the camera back on. Since we're mostly
> configuring our cameras remotely, switching the camera off manually
> obviously isn't an option.
> I have not tested the cli or with other cameras than Nikon, so the behavior
> might be different there.
>
> Other tools like Nikons own camera controll pro can store changes
> permanently, so this does not seem to be an issue with the cameras
> themselves.
>
> I'm hesitant to call this a bug, because there's a possibility that I'm
> missing an API call that would make the changes permanent, but I can't find
> any mentions of such a function in the API docs. If there is, I'd be
> thankful if you could tell me how it's called.

Does this go for all config options?

I am so far not aware of this :/

Not sure what things they send. Perhaps the Controlmode command is responsible.

Set "controlmode=1" at begin and "controlmode=0"

Ciao, Marcus

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