Peter,
This is interesting, because I used Neofin blue a fair amount in those
years to develop Adox KB14 and especially, KB17. I distinctly remember it
as a single-solution developer, supplied as a liquid concentrate in five
little glass vials to a box. I found the two-part Beutler formula yesterday
with a Google search and there is a mention of the Neofin developers, with a
note that they were also developed by Beutler, have surface-hardening
properties (?) and are "similar" to the two part Beutler formula.
Maybe Neofin blue is the two-part already combined, together with a
surface hardener?
Bob Stoddard
>From: Peter Davidoff <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>Subject: Re: [Cameramakers] What film type?
>Date: Mon, 30 Jul 2001 21:24:06 -0600
>
>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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