Digital BW, The Print

> From: djon43 <djon43@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Tue, 15 Nov 2005 15:22:17 -0000
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: [Digital BW] Re: Old plate scans - effects
> 
> You could produce the fake border effect using film.
> 
> You'd prepare a sheet film holder with an opaque, roughly rectangular
> mask with rounded/uneven edges, use it to make various exposures to
> get film totally black in the exposed central area, surrounded by
> feathered or rough clear edges (eg perhaps 1/4"-1/2" wide all around
> on 4X5 sheet film).

I think this part I have through other means.
 
> 
> You'd contact those sheets onto additional positive film sheets, the
> edges of which you'd abuse with temperature (eg hot, or hot then cold
> water, or burn with a light bulb or steam iron). The contacted film
> would have clear center where the original was totally opaque, the
> surrounding area would be blistered/bubbled, maybe even browned.
> 
> You'd want to produce a bunch of different positives (clear centers)
> so the fake wouldn't be too repetitive.
> 
> Kodalith would be ideal if you cold find it, since it's got a thin,
> maximum-clear base.
> 
> Polaroid Type 51 might be more convenient, if you could find it and if
> it wasn't fogged with age.


I think this is the part that I am missing.   I wonder if exposed slide film
(no image) could be used - say Provia.  The largest I have is 645 which may
make a little more finicky to deal with.