Jump to content
markr041

10bit vs 8bit HDR (HLG) Shootout Video

Recommended Posts

That's not true. The Atomos Ninja Inferno and Shogun work great with HLG. Just turn on the HDR mode and you'll view the expanded dynamic range right on the display.

You can also use the waveform and false color as exposure aids.

Share this post


Link to post
Share on other sites
EOSHD Pro Color for Sony cameras EOSHD Pro LOG for Sony CamerasEOSHD C-LOG and Film Profiles for All Canon DSLRs
On 5/29/2018 at 9:21 PM, interceptor121 said:

On final cut pro X I found that the option 'Show HDR as Raw values' in playback settings helps a lot and you need to revert to using REC709 and scopes or exposures to see what you are doing (this is to address jonpais post)

So my point is considering none of the external recorders nor the camera screen display is HLG how am I suppose to expose correctly? I have heard about setting zebra at 90% but it seems the camera can do more so I am thinking of moving to 95 % as with HLG you can't exceed or dropping the zebra altogether

Well I had the same case but a different camera. I recorded some HLG3 files with my exposure metering at 0 using multi metering mode on my A7III. When I imported my files into my timeline in fcpx I used the HDR Standard tool to convert it from 2020 to rec 709. I think it is not the best method but it kinda worked. I used Filmconvert for my grading my part but had to put  my exposure down in post by 2.5 stops. 

Here are my results: 

 

Share this post


Link to post
Share on other sites

https://www.mysterybox.us/blog/2017/12/18/studio-grading-in-hdr-on-the-smallhd-p3x-and-atomos-sumo-19

This was interesting about HDR grading in my opinion, I don't know how the panel in the smaller recorders stacks up against the Sumo though.

 

I follow the DaVinci Resolve user group on Facebook. While most of the professionals there have probably higher quality standards than people producing for the web, the general opinion on using the Atomos products was "totally not". But if one produces for consumption on phones and tablets, the benchmark is a lot lower in my opinion.

Share this post


Link to post
Share on other sites
On 3/19/2018 at 11:00 AM, markr041 said:

No color correction other than the Resolve presets converting Slog2 to HLG and level adjustments. It is a real HLG video. You can easily tell which is which, since the 10bit source from RAW is 4K DCI and the 8bit source is 4K UHD.

 


If you do not like the test ("the test is a joke," "the test tells me nothing," "YouTube converts to 8bit anyway, so what?"), suggest what you would want to see instead. I can do anything with the original Slog2 clips, including making them available for download. 
 

 

I think if you want to test for differences in bit depth then you have to see what happens when you apply a "Look".  You can try different degrees of aggression here.  What you've done is a test of what it looks like straight out of camera, but I think most of us "grade" our pictures. 

In grading the pictures is where you'll notice differences in bit depth. 

JB

 

 

Share this post


Link to post
Share on other sites
6 hours ago, interceptor121 said:

as of today Mac computers only output HDMI 1.4b and therefore no HDR of any sort looks possible 

in the final cut manual mentions specialised output devices

Right. You’ll need something like the BMD Ultrastudio Mini Monitor and a Shogun Inferno. 

Share this post


Link to post
Share on other sites

I hooked my computer (a PC) with a professional graphics card (AMD Vega Frontier Edition) that will do true 10-bit output to my HDR television for a cheap way to grade HDR footage. If you have an HDR television, you can check out a test I did here using Premiere Pro CC.

 

Share this post


Link to post
Share on other sites
22 minutes ago, Lux Shots said:

I hooked my computer (a PC) with a professional graphics card (AMD Vega Frontier Edition) that will do true 10-bit output to my HDR television for a cheap way to grade HDR footage. If you have an HDR television, you can check out a test I did here using Premiere Pro CC.

 

But the tv applies its own color mgmt to the image... 🙁

Share this post


Link to post
Share on other sites
9 hours ago, jonpais said:

Right. You’ll need something like the BMD Ultrastudio Mini Monitor and a Shogun Inferno. 

That won’t work the only device supporting HDR screens is the Ultrastudio 4K extreme 3 and it only supports HDMI 2.0a so HLG won’t be supported Anyway

Share this post


Link to post
Share on other sites
35 minutes ago, interceptor121 said:

That won’t work the only device supporting HDR screens is the Ultrastudio 4K extreme 3 and it only supports HDMI 2.0a so HLG won’t be supported Anyway

You are mistaken man. You can absolutely use the Shogun/BMD Ultrastudio Mini Monitor for grading HDR. 

Share this post


Link to post
Share on other sites
26 minutes ago, jonpais said:

You are mistaken man. 

Read the specs yourself 

BMD mini monitor supports HD 10 bit colour but only rec709 

So hows that magically going to become HDR when you connect to an HDR display?

I have seen your youtube no doubt you can connect a screen to that adapter but how are you going to tell the screen to display HDR? Are you sending some metadata or what?

Share this post


Link to post
Share on other sites
7 minutes ago, interceptor121 said:

Read the specs yourself 

BMD mini monitor supports HD 10 bit colour but only rec709 

So hows that magically going to become HDR when you connect to an HDR display?

I have seen your youtube no doubt you can connect a screen to that adapter but how are you going to tell the screen to display HDR? Are you sending some metadata or what?

I suggest reading Mystery Box. 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...