----- Original Message -----
From: "Jeff Dilcher" <dilcher@hiddenworld.net>
> What the heck is inverse quadratic diminution? Maybe I shouldn't ask!
Inverse quadratic sounds to me like Inverse Square Law, as for cubic
diminution, never heard of that before?
> I believe you are seeing vignetting. I it seems more pronounced on
> large format cameras with a short focal length.
Large, 35mm, medium format, it hapens with all of them.
> On Thursday 13 December 2001 06:26 pm, Murray wrote:
> > Is that vignetting due, or is it the inverse quadratic or cubic
diminution
> > of light intensity as a function of distance on a focal plane, as
opposed
> > to a curved one like in an oatmeal cannister? Or what else would it be?
Inverse Square Law effect is just one of the reasons.
Guillermo
Received on Fri Dec 14 08:26:15 2001
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