Small addition: if you would attempt this, the direction of your camera *will* matter to get the correct perspective match with the old picture. The center of the old picture should be the same as the center of the new picture!
Groeten, Vic Vic Mortelmans wrote: > If you could pin down the exact location where the photographer was > taking this picture, you could take a new picture of the current > situation, and by layering the old picture on the new, you can at least > find out where the old buildings were as compared to the current situation. > > I don't think that the focal length will matter, as long as > 1. you're in the same point where the original picture was taken > 2. your angle is wide enough the cover at least the scene of the old > picture. > > Please post us with progress on this matter! I like this kind of stuff! > > Groeten, > Vic > > Lasse Karlsson wrote: >> Hi all, >> >> I'm doing some research on the earliest constructions of my hometown, >> Mariehamn. >> >> At the link below there is one very early photograph of the town, from >> around 1870. In it there are still a number of houses, farms, of the village >> where the town was founded in 1861. I'm trying to establish the exact >> location of these constructions, so that I can draw them on a current map or >> walk there and say: This is the south-west corner of that house, this is... >> etc.. >> >> (The photograph, originally in B&W, is a "working copy" of mine, where I've >> added a few things in color just to help me see various parts more clearly.) >> >> The constructions which I'm interested in, are to the left, on the hill, as >> well as on the slope towards the photographer. >> >> I know, or will be able to pin down the exact locations of some houses, or >> corners thereof. Some of these have been marked with a blue "x". >> >> Now, I believe that it should be possible, to actually determine the exact >> locations of these buildings just by going by this photograph. (Let's say it >> was shot with a lens equalling 50mm on 35mm film camera.) >> >> Am I correct or mistaken? >> >> If it's possible, can anybody help me out in how to go about doing it, or do >> I have to redo my geometry classes? >> >> http://photo.net/photodb/photo?photo_id=6894839&size=lg >> >> >> Thanks for your comments, >> Lasse. >> >> > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
