GH4 GH4 video rec.709 or 4k rec.2020 bt.2020

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wwjd

Well-known member
geek question I probably won't even understand the answer for:

Is the 4k video coming out of the GH4, the new standard rec.2020 or same old rec.709 color space?

I ask because 4k is slated for rec.2020, but I don't know where the difference tween that an 709 is found. Does editing software have rec.2020 in it yet?
 
wwjd said:
geek question I probably won't even understand the answer for:

Is the 4k video coming out of the GH4, the new standard rec.2020 or same old rec.709 color space?

I ask because 4k is slated for rec.2020, but I don't know where the difference tween that an 709 is found. Does editing software have rec.2020 in it yet?
Click to expand...

rec 2020 is very new and utopistic future codec definition. I think that no camera or TV uses it already.

GH4 uses old rec709 which means usually in practise that luminance levels (light levels) are recorded 16-235 in 8 bit space. GH4 lets you record also 0-255 luminance scale so you get more room for shades and there is less banding.
 
so 0-255 is NOT really part of 2020? kind of a different thing? I understand the color space is wider... I thought new 4k TVs were rec.2020 capable?
 
Canon this month is upgrading the C500 to rec.2020. I saw it at IBC into their 4k rec.2020 monitor. Amazing color
 
Do some studying with google if you want to know more. All the information is there. If I remember right rec2020 contains 4k 60P or even 120P and less compressed colors like 4:4:4. Common 4k TVs can show only 30P.
 
lightstrum said:
Canon this month is upgrading the C500 to rec.2020. I saw it at IBC into their 4k rec.2020 monitor. Amazing color
Click to expand...

Maybe I could advance this discussion... any reason why we could not expand GH4 footage out to fit rec.2020 when it becomes more mainstream? We can adjust contrast/colors past rec.709 (pointlessly) now, so why not expand our edit to meet 2020?
 
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