White balance has nothing to do with exposure. White balance tells the camera what is white and references the other colors to that so they all look true. Exposure is the amount of light going into the camera to create an image. If the image is too hot, 1, use an ND (Neutral Density) filter, 2, stop down (but if you stop too much - like right on the edge of closed - then you can get distortion and double images), 3, increase the shutter speed (this can cause some movements to seem less fluid). Generally, the ND filters are the best because you can leave it at a low shutter speed and leave the iris as open as possible which has a variety of benefits. If the internal ND filter (if your camera has one) is not enough, screw one onto the front. A CP (circular polarizer) cuts down light like an ND, but helps bring out some colors like the sky and water and is a good thing to have when shooting outside. These are my favorites:
http://www.tiffen.com/filters.htm, but they are not the best money can buy.
There also seems to be some confusion on the zebra stripes and how they work. When you turn this on, for everything that exceeds the exposure threshold, the camera will overlay the stripes. This can be advantageous or not depending on what you’re trying to do, but I generally use them. Now, the 80 and 105 refer to luminance in regards to IRE (I can’t remember what this means). Where you set this depends on how your camera is set up. I’m kind of surprised this camera has a setting for 105 because most chips cut off everything over 100, but anyway. If you imagine an S graph where high exposures are on the left and low exposures on the right, there is a certain point where the light levels are too high or two low to create a picture. There is a chip in the camera that cuts off anything outside of the levels the manufacturer set (this point is called the knee). Because analog will wander, the upper level used to always be set at 80%, and anything above 100% is not broadcast legal. Likewise at the low end, 7.5% is the cutoff and always has been because they use lower parts to encode the signal. With digital there is no wander, and the knee is usually set at 100% now. This causes the camera to be able to record a wider range of exposures. By setting the zebras at 80%, everything above that level will be superimposed with zebras, and likewise with 110%. This is meant as a quick reference. You should use a waveform monitor if you want to be precise.
http://www.amazon.com/exec/obidos/A...8/sr=2-2/ref=pd_bbs_b_2_2/104-0943468-5942335 is an EXCELLENT resource for anyone who wants to learn about the technical side - which should be EVERYONE who uses a camera.