Charley King
Forum Replies Created
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If you are offlining, never needing to worry about playback on a broadcast or TV set, or for that matter any playback device that feeds a digital signage system, then you are not really concerned about video or chroma levels.
Charlie
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First rule of thumb. Never use color combinations over 235,235,235 White. or 16,16,16 black, for broadcast.
If you keep everything below 235 and above 16 you should be ok in most cases.
Charlie
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[mark harvey] “It blows my mind when a new employee comes in and has gone to school, but can’t read either a scope or a wiring diagram. For me, those should be taught from day one in TV school”
We had a teacher at a Vocational Education High School here that I use to call him for recommendations for graduates to hire. I never asked the University. This guy taught the kids something since he worked in his off season at a TV station to keep informed.
I ust to tell the graduates from Colleges, “Forget what you spent the last four years learning, you don’t do it that way in the real world of TV. Funny thing is now I think they do…….And I hope to see you this year also.
Charlie
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[Tim Kolb] “a good set of test displays (waveform/vectorscope) will probably be the only real image “truth” available for a while…”
As I keep stating, and I don’t think it can be overstated. I never use the monitors for color or levels. I always use my scopes. I think with me it is many years of broadcast TV that is behind my reliance on scopes.
Charlie
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OK here is my 2 cents. I prefer LCD because of size. The reasons many talk about prefering CRT is colorimitry and aspect ratios. Well, I don’t use my editing monitors for seeing the video quality anyhow. I have an NTSC monitor for that. I don’t watch my video on the editing monitor as much as I watch it on the NTSC monitor. As I have said before I don’t even use the NTSC monitor for color or video levels, I use my scopes for that. I am an old linear editor by heart and experience. I started in black and white live so I have been through a lot of changes and still use many of the old techniques. Is that good, who knows, but it certainly works for me.
OK guys tell me where I am wrong?
Charlie
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One very important thing that many people don’t think of to remember is if a screen looks a little blue, that doesn’t always mean there is too much blue so let’s turn down the blue. Look at the parade on the scope see if it may just be not enough green. You can use this for all colors. You don’t always have to turn down, but then too you don;’t always want to turn up because that can sause problems in the overall video level. That is whay you use all scopes available to you. Learn how they all interact.
Charlie
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[rap] “what kind of scoe and how do you use it?”
YOu need to learn both vector and Oscilliscope. First thing to consider is when doing graphics on computer use the 16-235 rule. No blacks under 16,16,16 and no whites above 235,235,235. That will give you a 7.5 IRE black and a 100% white. This constitutes 1 volt of video. To actually read the scopes it is not that difficult once you see it in action, but is hard to explain in a couple sentences. I would recommend Pixel’s suggestion that you let a chief engineer of a TV station explain it. Most of them should know how color setup is handled. I learned from an engineer that I will always remember because he explained everything as tho it was a thing with a personality. Made it very interesting. But the main thing to remember is nulling. That is again very ahrd to explain, I just started 6 sentences to attempt and deleted each before I got more than a couple words typed. Good luck, you seem very interested in learning and we could use more like you. too many start out these days with little or no knowledge and feel they don’t need any.Charlie
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[Pixel Monkey] ” I’m convinced that using LCDs as primary editing monitors are why so many commercials and programs now-a-days have slipped sync.”
Ever consider the sync loss through frame syncronizers when broadcast is getting the video from sattelite then running through switchers which some have built in frame synchronizers also. Then it goes to the Cable company and is reprocessed. then your home cable box reprocesses it and it then runs through your home LCD HD set?
Charlie
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I agree totally. If you create everything as tho it was to be broadcast, your quality of all projects will be uniform and in the long run everything will playback cleaner and better.
Charlie
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I personally have one CRT screen, one LCD screen, and an NTSC monitor. I love the dual screen editing, but wish I had two wide screen lcd’s. The only problem I have is the height settings of windows are not the same on the two different screens. Yu can’t really trust the LCD screen for video and color reference. But then I have never really trusted any screen for those elements, that is why they made scopes. I never color correct to a monitor, I always use the scope to color correct then check the monitor to see if I like the results (hoping my monitor is as close as I can get it).
Hope this helps.
Charlie