I use a piece of plastic screening inside a tube to avoid the scratching
and also allow the chemicals to cover both sides. I think I got this idea
from someone's posting on the list a couple of years ago. It has worked
pretty well. You can buy the screening at a hardware store and just cut it
to fit inside the tube.
- Gregg
At 04:55 AM 6/2/2002 -0700, you wrote:
The inside edges of the tube have to be very polished. I have had many a
tube that have felt smooth, but have scratched my film. The best way to get
around it is to keep sanding the edges with finer and finer sand paper, and
finally finish it off with steel wool. You could also try puttin your
finger between the film and the tube in the center of the film where it is
being scrached.
John
http://www.enteric.org/
----- Original Message -----
From: "Shannon Stoney" <shannonsto...@earthlink.net>
To: <pinhole-discussion@p at ???????>
Sent: Saturday, June 01, 2002 10:57 PM
Subject: [pinhole-discussion] tube development
> I just made a tube for developing 8x10 film in, out of ABS black plastic
> pipe. I did it according to the directions in the Beyond the Zone System
> book. It worked pretty well, held liquid well, etc, but when I withdrew
the
> film from the tube it scratched the non-emulsion side pretty badly with
two
> long scratches. I felt around inside the tube but couldn't feel any big
> sharp places or anything. I had sanded some inside. Any clue as to what
> caused these scratches? maybe residual sand from the sandpaper?
>
> --shannon
>
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