[Shotwell] Photo exposure time correction

[Svetoslav Trochev]

On Sat, Jul 3, 2010 at 2:33 AM, Bruno Girin <brunogirin at gmail.com> wrote:
> Hi all,
>
> I just read this post from Dustin Kirkland:
> http://blog.dustinkirkland.com/2010/07/keeping-pictures-from-multiple-cameras.html
> This shows an interesting aspect of the workflow that users who use
> multiple cameras may face. So an interesting feature to consider for the
> future may be the ability to adjust exposure time of a batch of pictures
> to correct deviation from the camera.
>
> I have another use case that could benefit from such a feature. I had
> the internal clock battery die on one of my cameras once. All pictures
> taken from the point that battery died to when it was replaced have a
> date of 1st Jan 0000. Having the ability to correct that in Shotwell
> would be great.
>
> On a related note, another potentially useful feature would be the
> ability to specify a time zone for a set of pictures so that the
> recorded time is actually adjusted based on time zone. The typical
> example for this is when I go travelling: I never adjust the time on the
> camera itself when I cross a time zone so it would be nice to be able to
> adjust that in Shotwell. It would also be useful for regions that have
> daylight saving time in the summer to compensate for cameras that don't
> adjust.
>
> Cheers,
>
> Bruno
>
>
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Hi Bruno,

I have shotwell 0.6 and I think it can do what you want all ready I think.
1. Select photos needed clock correction.
2. From the menu select: Photo > Adjust Date and Time ...
3. Select the date and time you want for the first photo.
4. Make sure that 'Shift Photos by the same amount' is selected.
5. Check 'Modify original files;
6. Press OK.

This should do what Dustin Kirkland does with a script.

http://trac.yorba.org/wiki/UsingShotwell0.6#TimeandDateAdjust

Have you try this or I just misunderstood what do you need?

Good luck,
Svetoslav