I was going to shoot some samples but it's already been done. Look here: http://tinyurl.com/bt7fu
Don > -----Original Message----- > From: pancho hasselbach [mailto:[EMAIL PROTECTED] > Sent: Friday, July 15, 2005 5:05 PM > To: [email protected] > Subject: Re: Theory of Equivalency > > > Paul, > > I made up some thoughts that probably show that you're wrong. > > To me, solving this kind of problem by thinking is too hard, so I made a > little sketch (low-fi, I know, but it's late and I wanted to share the > idea) that illustrates why perspective depends on focal length. > > The sketch and some explaining words are found at > > http://www.vollholz.de/peso/perspective.html > > Let me know what you think about it, > pancho > > > [EMAIL PROTECTED] wrote: > > Well, yes, of course. In truth though, I only have one really > long lens -- an A400/5.6 -- so I make do with that. There's no > selection process involved <vbg>. > > > > My only point was that when shooting a given object at a given > percentage of frame fill, the 400 quite obviously delivers a > perspective on APS digital identical to that of a 600 on 35mm > film. In other words, the tests that Shel is going to perform > will reveal exactly that. As you and others have said, the > perspective is dependent on distance from subject (and therefore > FOV) rather than focal length. >
