On 6/4/07, Mark Clements gmane@kennel17.co.uk wrote:
"Anthony" wikitech@inbox.org wrote in message news:71cd4dd90706040629s193d5845q277b8233044f3ad4@mail.gmail.com ...
Right, take that photo in the example and pretend we don't know the
position
of the photographer. Also assume we don't know the focal length, or
type of
camera, or even whether or not the image has been cropped. There's no
easy
way to extract the location of the photographer from just that
photograph.
You can, however, tag the image with the location of one of the two buildings, or even both of the two buildings. If you do know the
location
of the photographer, you could even tag all three points, hopefully with some metadata saying that one of the three points was the photographer's location.
So it appears that my suggestion that the possibilty of adding multiple named tags (rather than just a single co-ordinate pair) would actually be useful on commons after all...
IMO, yes. [[Image:Nationalmuseum.jpg]] for instance is tagged with two locations, that of the photographer, and that of the subject.
I also noticed something - [[Image:Nationalmuseum.jpg]] gives a "Subject distance" of 65.535 metres, which is significantly closer than the museum, at 270 meters. So using that figure probably doesn't make a lot of sense, as a photographer is often going to focus in front of the actual subject of a picture (see [[hyperfocal distance]], for instance).