From: Jeffrey D. Mathias (jeffrey.d.mathias@worldnet.att.net)
Date: 09/17/00-04:07:41 PM Z
Sandy King wrote:
> My interest in whether this multiple light unit should be considered
> a point source or diffuse light source lies not in whether or not the
> inverse square law works but in how much sharpness is lost when using
> reversed negatives.
It is imperative that one consider their final results from the
materials used before reaching for an unnecessary extreme.
In many cases the sharpness of the final image is limited by the ability
of the paper surface to render detail. There are indeed many papers,
when used with the Pt/Pd process, that can render the same detail in the
final print whether the negative is placed emulsion to coating or
reversed when using diffuse BL bulbs.
A question should be - how much sharpness is desired in the print; then
appropriate materials and/or process should be selected. Trade offs may
have to be made as all one's preferences are considered. And one must
be disciplined enough to work within the restrictions of the materials
or be savvy enough to exploit the out-of-the-box scenarios.
-- Jeffrey D. Mathias http://home.att.net/~jeffrey.d.mathias/
This archive was generated by hypermail 2b29 : 10/01/00-12:08:59 PM Z CDT