If you want to use this profile for broadcast, it works fine for broadcast, and I've used it often for that, just set your Black Level to '0'. Video levels under '0' in a broadcast situation will get clipped, and any detail in those sub-zero dark areas of your image will effectively get crushed out of visibility.
Thank you! I’ll give it a shot. So it can go straight to TV and not have to be converted or anything like when you put HLG3 in Premiere you have to change color input?
No need to change anything. You can use it as per the profile settings I posted. You will notice, under 'Color Mode', 709 is selected. This is a Rec 709 compliant file. It gives me the best dynamic range I can get within the Rec 709 specs for straight to air. The dynamic range is coming from the use of the HLG3 gamma curve but using it in the Rec 709 color spce. Here are the setting again:
Thank you again. Last question. Zebra wise, is it 70 around skin tones?
Who's skin?
Mine! But 70ish IRE is a good target for white people. You use common sense to adjust based on the subject skin melanin.
Don't even get me started on this racist, inaccurate, outdated, and lazy way of exposing.
Doug. I find a little like S-LOG the HLG gamma curves do benefit with about one stop over as they are flatter curve than a stock six stop 709 curve in exposure. And yes, I find 70-75 IRE works quite well on Caucasian skins. Obviously, different skin colors would require different levels, as has always been the case. Normally in a 709 gamma world I base my Zebs anywhere between 60-65% dependent on the skin color/tone and lighting conditions at the time. The old rule of thumb that is that In the middle of the IRE range, 10 IRE is about one stop. So 70-75 IRE is about one stop over what I would be using if I was shooting with a stock six stop 709 gamma.
Doug. 30% f our population are overseas born. They range from the driven white snow of a fair Irish maiden's face to the darkest skins of sub-Saharan Africans. We have a massive population of Indians, Chinese, Vietnamese and other Asians. We are in S.E. Asia, after all. What we don't have is a lot of people with a Hispanic background. Though we have a hell of a lot of southern Europeans from Italy and Greece just to name a couple. Melbourne in the state of Victoria has the largest Italian and Greek city populations in the world outside of Italy and Greece. So similar to the Hispanic complexion from an exposure POV. And don't forget our own indigenous native population of Aboriginals. Some of the darkest skins on the planet.
Right. And let's set our audio levels according to race too, because obviously some cultures are naturally louder than others.
Oh Chris, In that scenario, I wouldn't give a rat's ass about skintones. But I'd probably expose from a white card and hope for the best. There's a million hypothetical scenarios that you could propose where setting exposure would be challenging. But what about the day to day shots we have to do with non-white people in controlled situations? It's ridiculous in 2024 to talk about Caucasion skintones as being the standard by which exposure is judged.
Skin tones are the least of my worries if I’m in a dingy with disco lights
