White Balancing Basics

[Misa]

I`ve heard from a guy (not tested yet) if you put something white in front of the camera for 5 seconds while you are u/w it will auto w/b.

Is this true?

[The Publisher]

I don't believe so. You have to tell the camera that what it is looking at is what white is supposed to be. When you press the button telling it to white balance, that is something that manually needs to be done. Otherwise the camera just sees colors, but does not know what to reference those colors to.

[David White]

My standard operating procedure is to white balance with Amphibico's slate prior to just about every shot. On occasion, where I am not getting the required result I will white balance by aiming the housing at the sun. Dropping down the green colour balance in post is usually the only correction that is required while editing. For the most part, except in shallow water, I always utilize the red filter.

[klemens Gann]

I personally don't use red filters anymore as they "swallow" too much light and I don't like getting it back through "gain" as the picture quality degrades a lot. It looks grainy which I can't stand.
In my Gates housing I have 3 white balance switches. One is preset which can be set to outdoor or indoor. I use indoor here ( which gives a bluish picture) to compensate my halogen lights. the 2 other switches are manual settings for white balance. Switch A I balance on Land to a very red tone ( this compensates for the red filter, I achive this by white balancing against a blue background)) and the switch B I adjust underwater depending on the situation. I usually use a greyish background to white balance against, in my case grey sponges work very well. This way you are pretty good with macro and white angle. Of course every day is different and if the visibility is bad it's always hard to get good results, but final cut and a lot of patience takes care of the rest. Anyhow I agree with Dave, try to get it as good as you can underwater and not in front of your computer.

[Okeanos]

I just use the surface to set my white balance. If I want it to be a little richer in colour I reduce the angle and keep changing the angle until I get the results I want. I do the same with my stills camera and have had some half decent results.

[The Publisher]

Nothing like color correction in post, although there is a limit to that...

I too do not like how much light the red filter removes....

[klemens Gann]

you right Dave, 99% of the shots I have will look better after I work with them for a while on final cut. As I said I never use the red filter, I exchanged it for a +4 diopter.