|
Steve,
The light is travelling a different path because there is no "lens" element in the luminance position.
Try a clear/luminance filter in this position of the same thickness as the RGB and the problem should clearup !
This is the standard setup for LRGB imaging - the Luminance filter should have all the same sort of anti reflective coatings etc as the other three.
LRGB filters are usually sold in parfocal sets.
Rally
|