The Kodak 3 x 3" #106 Amber Wratten 2 Filter converts an S-4 type photocell response, often found in densitometers, to an even-luminosity response as seen by the human eye.
Wratten 2 filters are constructed from gelatin for ease of use and consistent performance. When compared to the original Wratten filters, Wratten 2 filters are more rigid and durable, easier to handle, and less sensitive to humidity, static cling, and fingerprints.
#106 amber filter converts an S-4 type photocell response to an even-luminosity response.
Rare dye composite allows filter to alter the color wavelength of light.
Wratten 2 filters are constructed from gelatin for ease of use and consistent performance.