Archived posting to the Leica Users Group, 2010/09/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Herbert Kanner wrote: >>> A lens per se cannot manipulate contrast, it merely refracts what is there. But miscellaneous scattered light not coming from the image will reduce contrast as if the film (or sensor) had been exposed to a low level of miscellaneous distributed light before or after the actual taking of the picture. It is the same phenomenon that we try to avoid by using a lens hood: scattered light inside the lens. So, in my opinion, a "low contrast lens" is just a poorly implemented lens: failure to coat internal elements, shiny internal structural parts, whatever. <<< Seconded. A low-contrast lens is a sign of photon noise: a lower signal-to-noise ratio. Doug Herr Birdman of Sacramento http://www.wildlightphoto.com -------------------------------------------------------------------- mail2web.com ? Enhanced email for the mobile individual based on Microsoft? Exchange - http://link.mail2web.com/Personal/EnhancedEmail