In a message dated 4/29/2007 7:36:03 A.M. Pacific Daylight Time, [EMAIL PROTECTED] writes: ----- Original Message ----- From: "graywolf" Subject: Re: M85mm f2.0 bokeh
> Most folks do confuse f-stop with aperture, I sure used to. However, > they are not the same thing. So you are mistaken here (I have not looked > at the Wikipedia article to see if it is correct or not). > > I am not going to go through all this again, folks, look in the > archives; or better yet, get the formulas and calculate DOF using f-stop > and aperture diameter, go out and shot some photos and compare them with > your calculations. Then, like me, you will never make that mistake again. ========= Huh. Haven't been paying much attention to this thread. But I would presume while the diameter of an aperture opening could be set the same from lens to lens if one fiddled around, a f stop is dependent on the focal length of the lens. So a f/8 on a 16mm and a f/8 on a 200mm say, would actually have a different size of aperture opening if one measured the diameter. Is that what you are talking about? Thanks. Marnie aka Doe :-) ************************************** See what's free at http://www.aol.com. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
