The Kodak 3x3" #70 Wratten 2 Optical Gel Filter is used for making separation positives from color negative film.
Wratten 2 Improvements
- More rigid/durable
- Easier to handle
- Color consistent today, and 6 months from now as well
- Wratten 2 Optical Filters are less sensitive to humidity, less prone to static cling
- Fingerprint removal is also easier