I am shooting a new documentary on the Arri Alexa, and recently discovered some IR pollution when using ND filters heavier than .9 I have been experimenting with the Tiffen T1 filters to correct it (both the combo IRNDs and the straight T1 with the standard NDs), and have seen some major color shift with each filter. The IRND9 is green, the IRND12 is much greener, and the IRND15 leans more towards a brownish tone.
Has anyone else had this issue, and what have you done to solve it? I know that I can shift green/magenta in the Alexa menu, but I am not sure that that is a route that I'd like to go. Any information would be great!!!
Thanks in advance.
Andrew
