Carbutts Flexible Negative Orthochromatic celluloid dry plates keystone

description: First commercial films on celluloid
iso: 0
formats:
emulsion:
grain type:
grain size:
type:
process:
year begin: ~1890 ?
year end: ~1904 ??
available:
country of production: Made in USA
manufacturer:
distributor: Keystone Dry Plate Works (Then Carbutt Dry Plate & Film Co), Philadelphia
reliability: 1
contrast:
sharpness:
reciprocity notes:
tags:
brand: Keystone Dry Plate Works Then Carbutt Dry Plate Film Co Philadelphia