These are color corrected files from the Tiffen IR Vari ND test. It's a test to see how well they grade. In the process of filtering the infra red light this filter leaves a greenish cast in the image (higher ND number produces less green). Color correction was done in Davinci Resolve. The green was removed to make the image appear neutral. A custom LUT was applied to transform the image from film (log) mode to REC 709 color space. This LUT also ads color saturation. No masks or power windows were used.