Originally Posted by NoWhErE

Its not the same Hue. Chromakeying depends on a very certain green hue, all other greens will not be keyed out. But you can specifiy which blue/green you want to remove.

AND, if you have a model that has blue eyes and are afraid they are gonna get keyed out, just use a greenscreen instead


and even if by some miracle the eyes get Keyed out, just layer a mask over it to get them back (photoshop/after effects mask, not a halloween mask...)