Low noise filter shifting color towards blue

[Eugene Kosarovich]

I notice that when I'm shooting in higher gain and I turn on my low noise filter to the 1 setting, it shifts my color balance a little towards blue. Even if I just do this with the lens closed I can see the shift on a vectorscope just looking at the black. If I used the 2 setting, it looks to shift it even further, but I never use the 2 setting.

Is there anything recommended to compensate for this? Is there a tweak to the color matrix I would need to do or a white balance tweak?

Of course, depending on the shoot, I may not be in a situation where I could do something like that, but if it's something where I could have a different scene file ready when using the filter, that would be good. I already have a customized scene file for when I know I am going to be using the low noise filter in a high gain situation, where I adjust my black gamma to make it match the look of lower gain black gamma with the low noise filter off.

Thanks for any suggestions.

[Eugene Kosarovich]

In looking at it further, it now doesn't look like the noise filter's the cause of shifting the balance towards blue, but just the act of going up in gain itself seems to shift everything a bit towards blue.

Is there something I can do to compensate for this?

Thanks.