JJC GC-3 Medium Size Cards - Grey

in a previous video that I made about color grading tips I mentioned using this these gray cards you can find a link in the description below if you don't know where to get those they're pretty cheap I think they're about ten dollars or so anyways so let me elaborate I know a lot of you guys asked me more about these cards so what are these cards specifically for well first of all you get the gray card with a gray card you can do a perfect white balance not just for film but also for photography like for example if you're shooting some kind of a product like a purse or some kind of a dress you really want to nail down the precise white balance so therefore you have the gray card now black and white card and I'm gonna show you the venturi result screen right now what you can do with this so basically with the black and white you can also white balance with these cards but also specifical