Two types Plain Glass and Dichroic Glass. (Plain Glass less cost, fades over time. Dichroic much more expensive, holds true color.) Filter spread is also available to strengthen as well.
By size pricing. 6-8 week pricing. Lot size minimum.
DC =Dichroic F=Filter XXX R=Roscoe
G = Glass C=Color D=Devon
Requests are made via modification from standard.