Best way to remove ND color casts in DPP4?

[stevet1]

What do you think is the best way to remove the ugly green color cast in DPP4 when using a neutral density filter?

I stacked a 3 stop and a 10 stop ND filter to take a long exposure, and wound up with an ugly green color cast in the photo.

I went to DPP4 and using the color adjustments, de-saturated the green. It worked somewhat, but it still looked kind of sickly. I wound up converting it to monochrome, but I don't want to have to do that  every time.

Is there e a better way to handle this?

Steve Thomas

[kvbarkley]

Shoot in raw of course. 
Use something like a whibal to have a color reference

[johnrmoyer]

If something in the scene should have been white or gray, then use click white balance and click on what should have been white.

Else, instead of desaturating green, decrease green level and increase level of magenta and cyan.

Next time, include a white sheet of paper at the edge of the scene and use click white balance.

[stevet1]

John,

Thank you. I forgot about that.

Steve Thomas