At 09:56 PM 11/8/2007, Choiliefan@xxxxxxx wrote:
In what ways, if any does refraction affect this as the lens is stopped down?This distribution of energy must give individual lenses their signature bokeh then, no?I'm trying to get a grasp on this... Health, Peace Lance Selma, NC 27576
I am no fan of "bo-ke" or whatever it is, and find it so much gibberish though a lot of you guys seem to lead your lives in search of it.
Many lenses actually lose the ability to resolve details when stopped down. This is a really touchy issue and varies greatly from lens design to lens design. One example: the early 1.5/5cm CZJ Sonnar lenses for the Contax only stopped down to f/11. As lens coating was adopted, this was extended to f/16 and then to f/22. I suspect that an uncoated lens would have produced really muddy images when stopped down to, say, f/22.
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