Digital BW, The Print

----- Original Message -----
From: "Todd Flashner" <tflash@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Sunday, April 07, 2002 12:07 PM
Subject: Re: [Digital BW] Re: Scanning for print size - Pyro


> on 4/7/02 11:22 AM, Michael Kravit wrote:
>
> <snip>
> > A variation of pmk is
> > called Rollo Pyro. It is designed for Jobo type processing. It stains
more
> > than PMK does (this is good)...
>
> Is the staining anything more than just an elevation of the base+fog? I
> always thought a lower base+fog was better (lower dmin = higher dynamic
> range ;-), but I'm not sure about that.

Todd,

The staining occurs in direct proportion to the silver development. You can
actually take a pyro developed neg, bleach all the silver out of it and
print from image recorded by the grainless staining process. Practically
this does not appear to improve print quality so it isn't done.

So I guess the granularity, i.e. noise, goes to zero and the dynamic range
is infinite. <G>

Martin