Im NOT the guy who was demanding formulae. As far as fstop goes, yes most people know that stopping down increases DOF and opening up decreases it, but the only other factor that affects DOF, in-camera image magnification, is not very well known. That's mainly why I posted on this thread.
JC O'Connell [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of frank theriault Sent: Tuesday, April 07, 2009 9:21 AM To: Pentax-Discuss Mail List Subject: Re: Trading resolution for depth of field On Tue, Apr 7, 2009 at 9:13 AM, JC OConnell <[email protected]> wrote: > THEORETICAL CRAP? Screw you, this is REAL WORLD BASIC photograhpy > techniques. I would think that any photographer needs to know how to > control DOF. You cant just go "take pictures" without some basic > knowledge of "what controls what" in your images. And the fundemental > knowledge of "what can be changed later and what can't" > certainly doesnt hurt either. I think the point is that we don't need to know numbers, equations or theories to know that the wider the aperture the narrower the dof and vice-versa. Working with post-processing programmes lets you know what can be "changed later and what can't". I agree with you, BTW, that DOF is a function of camera, not processing, and the thought that these things can be applied or altered in photoshop is wrong-headed (but that's just me). But you can bang my head with all the numbers and theories you want, until I go do it over and over, I'm not going to "get it". Some people like the theory behind things, and that's fine, too. But we can't forget what the underlying theory is about: going out and taking photos! ;-) cheers, frank -- "Sharpness is a bourgeois concept." -Henri Cartier-Bresson -- PDML Pentax-Discuss Mail List [email protected] 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 [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
