--- Wratten safe-light filters ---

Kodak Wratten Safe-light filters

Wratten No	Ilford (equivalent)	Colour	Use
OO		Light yellow	Flashing halftones made through a KODAK Contact Screen for contrast control
OA		Greenish yellow	Black-and-white contact and duplicating materials, projection films
OB		Lime yellow	Slow Contact materials, Bromesko and Bromide etc
OC	902	Light amber	Contact and enlarging papers
1	900	Red	Blue-sensitive materials and most phototypesetting materials
1A	900, SL1	Light red	Slow orthochromatic materials
2	906	Dark red	Fast orthochromatic materials, green-sensitive x-ray films
3	907	Dark green	Some panchromatic materials
6B	904	Brown	Direct for Blue-sensitive X-ray films
6BR	914	Light brown	Indirect for X-ray films
7	903	Green	Some B&W Infra-red materials
7B		Green	Some panchromatic materials
8		Dark yellow	Colour print and Colour intermediate motion-picture films
9		Blue green	For Infra-red plates
10	908	Dark amber	Colour negative papers, materials, panchromatic black-and-white papers
10H	908	Dark amber	For use in handling Kodak “Ektacolor” paper
11	917	Appears opaque	For use with infrared inspection transmits infrared devices radiation
12	909	Light green	For development of “Kodalith” Pan materials by inspection
13		Amber	Colour negative papers, panchromatic black-and-white papers (Panalure)
ML-2		Light Orange	Industrial X-ray film
GBX-2		Dark red	Most blue-sensitive x-ray films, most green-sensitive medical x-ray films
Ilford Safe-light filters