In everyday terms, you could call it a GIR filter, as you have nanometers on, for example, GIR 30 and have measured it out so that the Sandrini filters hit as well as they can. If you are used to working with GIR or other light apparatuses, this is a unique filter.
Specifications:
InfraRed
Red
Yellow 22
Green 58
Blue 47
Brown L746
White
