Archived posting to the Leica Users Group, 2000/11/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Well if you're saying the same thing you are both wrong. DOF has nothing to do with focal length. From two prints of the same subject taken from the same camera position and enlarged so the subject is the same size, the DOF is identical regardless of the focal length of the lens. Let me put it this way and to put the thread more "on topic". Get on a bicycle (any bike will do) and peddle off to a distant scene with a pair of binoculars round your neck. A hill overlooking a nudist beach would be ideal for this excercise as there is nothing better to really concentrate the mind. Focus on the ugliest person you can see. Now, all the other nudists look as though they were on top of each other with the ugly one in the middle. Right? Calm down, your luck hasn't changed, this is a technical excercise. Its called the telescope effect. In the past, sailors called the telescope a "Bring 'em Near" because they didn't know anything about magnification. But they sure knew which beach to anchor off. Whats all this to do with DOF I hear you cry. To be honest, I'm not sure. I have to go. I'll be back when I've had another think. Alan - ---------- > From: Douglas Herr and Michael Berube > > > > I think we are saying the same thing Doug.