Re: Autochromes again

nadeaul@nbnet.nb.ca
Mon, 25 Sep 1995 22:17:04 +0300

..

>>In the advertising section up front there is an adv. for The Johnson Color
>>Screen Proccess.
>>You may already be familiar with this process. In case you are not i will
>>type some bits of their description:
>>
>>....uses panchro plates behind a Johnson Taking Screen......based on the
>>Finlay process......this plate is processed normally and contact printed
>>onto a high contrast plate ......This posative is then bound up in register
>>with a Johnson Viewing Screen to produce a bright tansparent picture with
>>true color balance... unique process has following advantages...(some
>>deleted)
>>..can make identical duplicates
>>..great latitude
>>..contrast can be varied

This was basically a brief revival of the old Finlay process, in 1953. The
screen had 175 units to the inch. The technical difficulty with the process
was to secure accurate registration of the viewing screen with the
transparency.

Luis Nadeau
NADEAUL@NBNET.NB.CA
Fredericton, New Brunswick, Canada