I'm using Richard Harringtons photoshop for non linear editors and he suggests 'run a levels adjustment and watch how I can choke the mat". HOWEVER, when I select create new adjustment and select levels... RGB appears next to CHANNEL at the top of the LEVELS window , NOT 'CHAIN MASK" as it does in Richard's how to video. I can't therefore further choke the matte.
Does this make sense to anyone? Richard, are you there? Thanks.