Processes

From Conservation of photographic negatives

soon: time line of processes

Negative Processes

Paper-Based	CALOTYPE EASTMAN AMERICAN FILM (Stripping Film) EASTMAN NEGATIVE PAPER LE GRAY’S WAXED-PAPER NEGATIVE PROCESS
Glass-Based	ALBUMEN ON GLASS PROCESS/ NIEPCEOTYPE DRY COLLODION PROCESS GELATIN DRY PLATE WET COLLODION PROCESS
Film-Based	CELLULOSE DIACETATE CELLULOSE NITRATE CELLULOSE TRIACETATE MIXED ESTERS POLYESTER