Full-time editor and wedding videographer, part time short film/ music video director.
This site is for beginners and pros alike. Even the pros may deal with this, if they're on a remote shoot, and there isn't power available, or having your battery adapter fail on set, so you have to go back to your stock batteries you keep for emergencies. On my first short film, I had a few batteries for my camera, and we filmed two days back to back, at two different locations (very far apart from each other). When day two came around, I went to charge my batteries, and I couldn't find the charger. The guy packing camera gear missed it, and we weren't sure if it was even there still. We had one battery with 20% left, and if we waited to go get the charger back, we would be a full day behind schedule, so we had to make it work! Knowing about IS, sensor cleaning, or thinking about the monitor brightness may have saved us a few more shots, when we got down to the last few percent.
I don't know why the 8 bit 4k ending up as 10 bit 1080 is debated at all. It's a fact that it can't happen. The reason 4K 4:2:0 down-samples to effectively 4:4:4 is because it has to do with how much color information is stored/ spread out in each range of (four) pixels. so by compressing the image, each pixel in 1080 is the sum of 4 4K pixels, and therefore all the data exists in each pixel. But 8 bit vs 10 bit refers to the range of colors a single pixel can capture. 8 bit is able to capture 256 shades per color (RGB). 10 bit is able to capture 1024 possible shades of each color. There's no way too add extra shades of color through scaling.
Basically, a REALLY large and flat key, or a key with equal fill. Basically, the goal is to keep shadows away, and avoid contrast. My original comment was me saying that when I shoot high key, I don't try to nail it in camera, I try to expose well in camera and bump everything up in post, but I forgot to add HOW to expose normally for high key. Also, shooting in a flat profile in camera gives you more dynamic range, which is good, but you image will still be as contrasty as any other profile once you grade it, so make sure your lighting is flat to begin with!
Well, I guess I should have elaborated; Large windows only behind talent without proper bounce light, unless you want the background completely blown out.
If you look at the bottom of any page on the site, you'll see 'The DSLR Cinematography Guide'. It's one of the things this site was started and built on; the DSLR revolution. Canon was the first to kick start it, and things haven't been the same since. It's like your first love moving on; you keep clinging to hope, even though not much is there, but you can't pretend nothing happened. Who knows? Maybe Canon might just hear the outcry, and mix everything up (They're mixed plenty up in the past!)
Just contact the station and ask, or look online at their specifications. That should all be public knowledge, and every station has different requirements for what they will accept, so asking on an international forum won't get you accurate answers.