Just got a schneider ND 1.2, and tested it out in a controlled lighting environment, and noticed a color shift. ISO 250 @ f11 under 3200k lighting conditions, clean no glass, then ISO 250 @ f2.8 3200k lighting, and noticed a warming color shift. The filter is brand new, and looks neutral to the eye. Any one have any issues with color sift using heavy ND on the 7D?
