> > Actually, this maybe of interest to some people on this list. > Charlie falco who is a physicist, together with an artist > David Hockney > did a research where they used optical distortions to demonstrate > that some Renaissance era drawing were made by tracing images obtained > with lenses (diffractive and/or refractive). >
Some Renaissance paintings include subtle clues about it. For example, Leonardo's pictures of an artist using a perspective device, as well as his writings about artists' uses of perspective devices. I'm amazed that Hockney and others make such a fuss about it. -- Bob > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Igor Roshchin > Sent: 30 January 2008 19:00 > To: PDML@pdml.net > Subject: Re: For the experts. Determening distances in a photograph. > > > Lasse, > > Yes, your problem may be solvable. > Sorry, I wouldn't have time and energy now to help you solving your > problem now. > However, you may want to take a look at the articles > posted on Charles Falco's website (in the "scientific papers" area): > http://www.optics.arizona.edu/ssd/FAQ.html > > While all articles contain potentially useful information, take a > close look at the first two articles, and the section 3 in this one: > http://www.optics.arizona.edu/SSD/FalcoUAE.pdf > > > Actually, this maybe of interest to some people on this list. > Charlie falco who is a physicist, together with an artist > David Hockney > did a research where they used optical distortions to demonstrate > that some Renaissance era drawing were made by tracing images obtained > with lenses (diffractive and/or refractive). > > I heard a few talks given by Falco, they are very interesting. > The articles (I believe) for the most part are rather > accessible for wide > audience. > > Igor > > > Lasse Karlsson wrote: > <...> > > 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 > > -- > 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. > > -- 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.
