His procedure is based on ink-dyed rice flour, coated onto a varnish
covered acetate. The "plate" is then sandwiched to traditional B&W film
and exposed in-camera. Register the "plate" with the developed negative
and print as a regular color print, either by contact or by enlarging.
His results are interesting, although not the exact look of a historical
autochrome. Maybe somehting other than rice flour?
Pinhole Journal
Star Route 15, Box 1355
San Lorenzo, New Mexico 88041
505-536-9942
No email address
John Barnier
12560 Morris Trail North
Marine on St. Croix, Minnesota 55047
612-433-4420
jb@dgi.net