stan@clyde.UUCP (Stan King) (05/25/84)
<bug food> This is just a reminder to novices in photography to not believe everything they read here. Photography is one of the subjects where plentiful reading material is available to those entering the field. For example, Kodak has very good books available. Popular Photography has enough beginning photography columns to bore you after you get the rag for a few months. The thing that sparked this comment is a recent submission about sharpness. Without naming names (because I forgot), I will draw your attention to the article that said that maximum sharpness occurs at f/2 and maximum chromatic aberration at minimum aperture. Does anyone with experience really agree with that. Flames welcome. -- Stan King phone: 201-386-7433 Bell Labs, Whippany, NJ Cornet: 8+232-7433 room 2A-111 uucp: clyde!stan
dmmartindale@watcgl.UUCP (Dave Martindale) (05/28/84)
The article being referred to said that for maximum sharpness, buy a normal lens with a maximum aperture of f/2 or thereabouts. The implication is that f/1.4 or f/1.2 lenses aren't as sharp - which is generally true. It did *not* say to use the lens at f/2 for maximum sharpness. The article *did* say that minimum aprerture produces loss of sharpness due to chromatic aberration, which is wrong. The smallest apertures are less sharp because of diffraction. So the advice was right, but the reason given was wrong. Dave Martindale