Tiffen 105mm (Coarse Thread) Decamired Red Color Conversion Glass Filters (Set of 4)

Tiffen Decamired Filters 
Decamired filters are designed to more easily handle unusual color temperature variations than the previously mentioned filters. Available in increments of both a red and a blue series, Decamired filters can be readily combined to create almost any required correction.

In measuring the color temperature of the light source, and comparing it to that for which the film was designed, we can predict the required filtration fairly well.