[Shotwell] Photo exposure time correction

[Bruno Girin]

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