Archived posting to the Leica Users Group, 2004/02/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> Sorry mate, this is the same person with the same reasoning. DOF varies > because he is allowing objects equidistant from the plane of focus but > at different magnifications to be directly compared. Okay I understand your point. This is getting a bit pedantic. My point was just that "a short-focus lens will irrefutably offer more DOF than a long-focus lens at the same F-number and image magnification." This is using the generally accepted definition of DOF, and when comparing different focal length lenses the magnification will be identical at the plane of sharpest focus but different at the near and far points of acceptable focus. I was wrong in stating that this rebutes your statements. - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html