At 01:53 AM 7/31/2001 +0000, you wrote:
>For what it's worth, I still remember a large test of available developers
>that was printed by Modern Photography or Pop Photo in the 50's. They
>were looking for a "best" developer for the thin-emulsion 35mm films which
>were becoming available then from Adox and others. Most of the many
>commercial formulas they tested softened the grain (sulfite?) and gave
>somewhat mushy results, but D-76 (ID-11) had little of this tendency,
>Rodinal almost none, and the best overall results were said to come from
>Tetenal's Neofin blue and red developers made according to the formulas of
>Willi Beutler. They gave good contrast compensation and high
>acutance. Maybe this is similar to the two-part developer you mention? RKS
yep. beutler's formula is the same as neofin blue.
fyi: the apparent high acutance comes from, if i remember, the way the bromide
crystals get pushed to the boundaries between light and dark areas. using this
as a metaphor, early scanner looked for light/dark boundaries and moved pixels
as part of the sharpness algorithms.
peter
hc berger
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