Just posted on the lens lust forum but I guess here's more appropriate... Sorry Hi all there I'm wondering if, shooting on a RED wall with a longitudinal crack, to emphatize that crack I could shoot in b/w + a RED/ORANGE filter on the lens. It's too long explaining why I'm not able to change it in PP. I'd just like to know if it could work, thanks. For what I know, the wall should be "brightened" by the filter effect and the black crack should pop up better. All the best.