> From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of > Bob Sullivan > > Bob, > I've got to disagree. I think most people don't know depth of field. > Most folks 'see' everything in-focus and never think about another > option. > When you take a picture and part of it is blurry and part in-focus, > they can't imagine why.
? That's what I said! B > The world is an Ansel Adams landscape... > Regards, Bob S. > > On Sun, Jan 22, 2012 at 11:07 AM, Bob W <p...@web-options.com> wrote: > >> From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf > Of > >> George Sinos > >> > >> Sorry if I've said this before. > >> > >> Something I've learned from my students is the typical viewpoint on > >> "how things work." > >> > >> For many people, the concept of focus is limited to the "whole > >> picture" being fuzzy or sharp. Think of focusing a movie projector. > >> The image is either sharp or it isn't. The idea of selective focus > >> isn't even in their mental model of the world. > > > > My experience is completely the opposite. Most people I've discussed > this > > with are very aware of out of focus backgrounds, but don't know how > to > > achieve them. When I had the Contax / Zeiss equipment on of the > things that > > really drew people's attention was the quality of the out-of-focus > > bacground. > > > > On the other hand, they don't notice deep focus. For example, in > discussing > > cinema they will be completely unaware of how Orson Welles, for > example, > > used depth of field in Citizen Kane. > > > > B > > > >> Given that, teaching > >> someone how to focus or how to select between "spot focus" and "area > >> focus" is fairly meaningless. The concept of controlling depth of > >> field us pretty tough without selective focus. > >> > >> At the first session, I ask people to watch a tv show or a movie and > >> watch how the director uses light and focus to draw the viewers > >> attention to or away from action on the screen. The next session's > >> discussion almost always starts with someone saying that they had > >> never noticed any of that before. > >> > >> When you're describing things to the general public, I've found that > >> you have to start by describing the artistic effects that can be > >> achieved and WHY you might want to achieve them. Then describe how > >> those things can be done technically. > >> > >> Exposure, depth of field, etc. All of these things are just means > to > >> the end of making a picture and guiding the viewer's eye through > that > >> picture. > >> > >> GS > > > > > > > > -- > > 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. -- 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.
