Re: Carbon

Luis Nadeau (nadeaul@nbnet.nb.ca)
Fri, 10 Apr 1998 14:40:59 -0300

At 4:06 PM +0200 98/04/10, Hans Nohlberg wrote:
>Klaus Pollmeier wrote:
>
>>BTW: When developing a carbon transfer on plexi, exposure time and
>>contrast can be judged by laying the (dry!!) plexi face down on a white
>>sheet of paper. By looking through the plexi you'll see the image as it
>>will look after framing. If s. th. is wrong, just clean the plexi and
>>try again..
>
>We have used Cobex, a white opaque plexi, for many years to achieve what
>Klaus is talking about, it's great. Especially when working with 3CC.

White vinyl chloride (Vinylite) works as well. For rapid testing white
enameled steel is also convenient.

>Another BTW: Even if Luis or Sandy don't believe it or can explain it;-)
^^^^
can't

>With 3CC it's necessary to clear the prints developed on plexi, we have
>noticed the difference.

I would reword it this way. "With some people's 3CCs (tricolor carbons) it
is necessary..."

Luis Nadeau
NADEAUL@NBNET.NB.CA
Fredericton, New Brunswick, Canada
http://www3.nbnet.nb.ca/nadeaul/