Archived posting to the Leica Users Group, 1997/03/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> If you print a negative at f/16, will you have a greater >"depth of field" in the sense that if the negative is not perfectly flat >in the carrier, that area of the negative will print sharper than if you >printed the same, not-perfectly-flat negative at f/2.8? Yup. Lenses are lenses, and the same lens will have greater depth of field stopped down than wide open. What I have been told, however, is that enlarger lenses generally perform best at about two stops down from wide open (f/5.6 for a lens with f/2.8 maximum aperture), so increased depth of field to compensate for an un-flat negative is the ONLY reason to work at f/16. - -- Nick NICHOLAS HARTMANN hartmann@interaccess.com Oak Park, IL USA 73057.724@compuserve.com Technical and scientific translator: German, French, Italian -> English