Jason Miller
05-27-2007, 03:15 PM
so me and a bunch of others have been having problems, with odd blackn abnd white edges around out GS subjects, which are killing us in post.
you dont see them in the color channel, if you look hard enough they are in the green channel, and they really show up in red and blue. the black edge around the subject is a zeroed out black.
I've gotten better results with edge detail -3, working the focus better, and keeping the green screen darker, but its still very annoying its almost as if there is some sort of b+w shift going on under the channels.
I know that an out of focus subject will cause many edge problems, but an edge that is either outside, or slightly inside the subject with zero color info make no since to me what so ever.
we are working with 2 different hvx's and get the same result. as well with a zu1, some will say its the screen which could use better keynos, but i can't see how external issues or focus issues will create an edge with 0 black.
any ideas?
Jason
you dont see them in the color channel, if you look hard enough they are in the green channel, and they really show up in red and blue. the black edge around the subject is a zeroed out black.
I've gotten better results with edge detail -3, working the focus better, and keeping the green screen darker, but its still very annoying its almost as if there is some sort of b+w shift going on under the channels.
I know that an out of focus subject will cause many edge problems, but an edge that is either outside, or slightly inside the subject with zero color info make no since to me what so ever.
we are working with 2 different hvx's and get the same result. as well with a zu1, some will say its the screen which could use better keynos, but i can't see how external issues or focus issues will create an edge with 0 black.
any ideas?
Jason