GH5 A complicated question on Lumix GH5, to get good shots in Africa

Could I do an example? If you have a clip with a color cast on a clip, how long do you need to process the clip and return it to the right color gradation with V-Log and without V-Log? I ask it because every my 4K project is around 40 minutes. I will need a lot of time .... maybe.
 
FoxAdriano said:
Could I do an example? If you have a clip with a color cast on a clip, how long do you need to process the clip and return it to the right color gradation with V-Log and without V-Log? I ask it because every my 4K project is around 40 minutes. I will need a lot of time .... maybe.
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In premiere using Lumetri, it takes a few seconds. There are many ways to do it, either through white balance, or through curves you can tailor it much more.
 
Hello, could you tell me if GH5 as well as recording in rec. 709 can record in rec. 2020. I ask this because I'd like to edit and export rec. 2020 which is more modern and gives more colors. Even my TV allows it.

In the various menu options of the GH5 I can't see this possibility: does it exist?
Thank you.
 
FoxAdriano said:
Hello, could you tell me if GH5 as well as recording in rec. 709 can record in rec. 2020. I ask this because I'd like to edit and export rec. 2020 which is more modern and gives more colors. Even my TV allows it.

In the various menu options of the GH5 I can't see this possibility: does it exist?
Thank you.
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If you record in HLG, you are recording in REC-2020.
 
With a few of words only, I understand. ;) Thank you.
But what I don't understand ìs: if not even a GH5 that is used to record in Rec. 2020 in its basic options, and it can only record in Rec.709, why have every Software of editing and every TV the option to choose Rec. 2020?

If I change that Rec. 709 made by GH5 when I make video editing and I export from the software Timeline to Rec.2020, what can it happen? Will I get an improvement or deterioration in the video quality?

PS: I'm changing settings on GH5: Even if I will use the GH5 in manual (UHD 25p 10bit), could I leave the ISO in Automatic, but choosing a range of 200-3200 ISO? Is it a bad idea? Is someone doing it and getting nice clips?
 
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Following!this seems like a very interesting thread
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FoxAdriano said:
With a few of words only, I understand. ;) Thank you.
But what I don't understand ìs: if not even a GH5 that is used to record in Rec. 2020 in its basic options, and it can only record in Rec.709, why have every Software of editing and every TV the option to choose Rec. 2020?

If I change that Rec. 709 made by GH5 when I make video editing and I export from the software Timeline to Rec.2020, what can it happen? Will I get an improvement or deterioration in the video quality?

PS: I'm changing settings on GH5: Even if I will use the GH5 in manual (UHD 25p 10bit), could I leave the ISO in Automatic, but choosing a range of 200-3200 ISO? Is it a bad idea? Is someone doing it and getting nice clips?
Click to expand...

If you export a video that was recorded in Rec-709, and export in a Rec-2020 format, this is what will happen:

  • You will not take advantage of the much high range of colors available to you in the Rec-2020 color space.
  • You will not take advantage of the HLG or PQ larger brightness capabilities available to this format.

When I shoot weddings, I am in manual exposure mode, and I adjust the shutter speed/angle and aperture based on the scene. I always use Auto-ISO on my GH5S and my S1H. This helps take care of scenarios when you move from a very dark area to a bright area, or bright areas to dark areas. This really helps at weddings when the bride and groom leaves the church and moves outdoors.
 
estarkey7 said:
When I shoot weddings, I am in manual exposure mode, and I adjust the shutter speed/angle and aperture based on the scene. I always use Auto-ISO on my GH5S and my S1H. This helps take care of scenarios when you move from a very dark area to a bright area, or bright areas to dark areas.
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Do you think it could be useful to me too in my african trips? What could be the problem, if there is a problem with Automatic ISO when I shoot outdoor.
Thanks for your interesting reply.
 
FoxAdriano said:
Do you think it could be useful to me too in my african trips? What could be the problem, if there is a problem with Automatic ISO when I shoot outdoor.
Thanks for your interesting reply.
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It could be helpful, but you really have to come to a conclusion of what exposure strategy works best for you. I can say all day long how it's great for me, but you have to be comfortable with it yourself. You must do testing, several times to see if it will work, and you don't have to go to Africa to do it. More than likely you will need a Variable ND filter to deal with very bright sun. There isn't an ISO low enough, or a shutter speed high enough, or a aperture small enough to deal with the brightest noon day sun.

I always shoot outdoor weddings with Variable ND filters on all my cameras, even though I am also using Auto-ISO.
 
In your opinion wich is the best Luminance level to choose for shoting in a bright environment like in Africa? I mean respectively for UHD 50p 8bit 420 and 25p 10bit 422.
I have in Gh5 Menu
UHD 50p 8bit 420
0-255
16-235
16-255

UHD 25p 10bit 422
0-1023
64-940
64-1023
 
Luminance level doesn't change the dynamic range of your image, only how it is displayed on your monitor or translated by the NLE. I use 16-235 only because my field monitor crushes the blacks if I set it to 0-255 and I can't make out shadow detail. 16-235 throws away a bit of bandwidth, which could be visible as banding on subtle gradations of color, although I've found the difference between the two negligible. If you can record full bandwidth, the levels starting at 0, then do so.
 
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FoxAdriano said:
In your opinion wich is the best Luminance level to choose for shoting in a bright environment like in Africa? I mean respectively for UHD 50p 8bit 420 and 25p 10bit 422.
I have in Gh5 Menu
UHD 50p 8bit 420
0-255
16-235
16-255

UHD 25p 10bit 422
0-1023
64-940
64-1023
Click to expand...

In V-Log-L and HLG, you don't have a choice as it's locked to the full range. The HLG profile only allows 0-1023 as it only works in 10-bit.
 
FoxAdriano said:
What do you mean precisely? If I use "Cinelike D" 25p 10bit 422 which do I uve to use?
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I simply don't understand why you are still entertaining profiles with limited dynamic range. You're initial complaint was holding the sky in this very harsh Africa sun, and the best choices are either V-Log-L or HLG. It seems you don't have the V-Log-L upgrade, which leaves you with HLG. If you use CIneLike D you will probably blow out your highlights. Smaller luminance range tells your NLE you have less data to work with. For the most room in post, use 0-1023. I say this because you should not be using any 8-bit codecs for anything for any reason in the harsh shooting conditions you have stated before. I strongly recommend against it.

If you must, then use 0-255.
 
I'm going forward with lead feet. Everyone tells me to use V-Log but nobody tells me that if I take wrong shots with V-Log, then I have to throw the clips away in the trash. Instead with a codec I can + or - to manage them.
 
FoxAdriano said:
I'm going forward with lead feet. Everyone tells me to use V-Log but nobody tells me that if I take wrong shots with V-Log, then I have to throw the clips away in the trash. Instead with a codec I can + or - to manage them.
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If you need more dynamic range, then V-Log-L and HLG are the way to go. But it is up to you, not us, to learn how to work with the V-Log footage and see what it can do. I will tell you this, you will always be able to save a V-Log/HLG clip more than any other clip. For the best results, your color grading skills are as important as your shooting skills. There is simply no way around this.

Nobody is going to tell you if something will work. You have to use it for yourself and determine that it will work for you.
 
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