On 27 Apr 2005 at 15:31, Bob Blakely wrote: > A perfect reproduction imposes no transitions from light to darkness, any > discernable transition would come from the nature of the subject and it's > lighting alone. > > If you see high contrast, but the transition from light to dark appears too > narrow such that the fine smooth transition from light to dark is not > discernable, I'd say look to something other than the lens.
I also have problems when lenses are said to be too contrasty, no lens can manufacture contrast, they might create hideous effects at high contrast edges but they can be overall more contrasty than the view which they are recording. The Harold M. Merklinger document "A Technical View of Bokeh" is still one of my favourites, note figures 6 and 7 on page 3 of the following document: http://www.darkroom.com/MiscDocs/bokeh.pdf This says it all for me. Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
