(Personally, I try to set my white levels to 98%, just to be safe.) There are several basic rules about levels that apply in both applications: The effect would mush all the lovely white texture of the white lace into an amorphous blob, resulting in life-long animosity from the bride. But you would NOT use the Broadcast Safe effect to protect white levels on a close-up of a bride wearing a white wedding dress. You would use the Broadcast Safe effect to clamp, say, video levels coming from street or ceiling lights, where you don’t care about retaining texture detail about the light. (100% in the case of Luma levels.) This clamping means that any texture or detail associated with those levels will be lost. What the Video Limiter/Broadcast Safe effect does is clamp – or lock – luma and chroma levels so that they don’t exceed a specific level. The only exception is when you create images on the computer, which makes it easy to create images with excessive levels. NOTE: While there are also limits on chroma saturation, most of the time chroma levels will be fine. This is because the technology involved in each of these distribution platforms has limits and excessive luma levels, especially with highlights, will get your program rejected by QA (Quality Assurance) at the distributor. If you are creating videos exclusively for the web, you don’t need to worry about illegal luma or chroma levels.īut… if you are creating programs for broadcast, cable, DVD, DCP or HDR, then video levels are critically important.
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