Hi all,

I did a search in here but couldn't find it... I am still google-ing at the moment but couldn't find anyway.

Long story short I have done a few studio type shots for a few friends yesterday, again a white wall.

2 off camera flash has used, 1 main light project to subject face at about 75* , and a 2nd light project against the white wall in attempt to reduce background shadow. Because I am not using a radio trigger, the 2nd light was put it at the side of subjects.

Now I got reasonably well exposed shots BUT while the background is NOT evenly white due to how I place the 2nd light.

I am sure I came across somewhere there a video teach people how to even out the background color in this situation in PS but I cannot find it anymore.

Would be very grateful if someone can teach me how OR direct me to the video that shows me how to do in

Thanks in advance