Originally posted by GregX999 Nuff, what ND10 are you using? It looks like a good one, no color-cast. Also, is a screw-in type? Or are you holding it in front of the lens?
I'm using B+W 110 filter. It's screw in and it's got heavy colour cast. I've shot few test photos at different light conditions with x-rite colorchecker classic card. Put it through a plugin in Lightroom and it assigned a profile for the ND10 in Shadows, Sun, Sunset etc..
On that particular day none of the presets got it exactly right, so I've adjusted white balance and that's the way it came out. Most of the time they get it right.