Archived posting to the Leica Users Group, 1996/09/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 11:42 AM 9/13/96 +0100, you wrote: >My experience is that lenses may suffer more flare at small apertures, not large >ones. If the principal cause of flare is internal reflections, and these are >more likely to come from metal than glass surfaces (due to modern coating You are probably thinking of ghost images. That's not flare. Flare is an overall reduction of contrast and saturation. What metal edges can do is diffraction - reduction of sharpness and ghost images showing the shape of the aperture in spots of light. Flare in most lenses, so I'm told, is reduced by stopping down, because a smaller area of glass is passing light. ================== Eric Welch Grants Pass, OR