OM-1 Video (h265/10-Bit/HLG) - best out of camera picture?

abgestumpft said:

Interceptor121 said:

abgestumpft said:

Until now I only had this one clip I did during the Touch&Try event. Since my OM-1 arrived I was able to do some (quick) testing with HLG Video.

Here my first impressions/findings:

Image preview on camera:
The HLG looks similar to LOG+View Assist ON (=BT.709 conversion) on the OM-1 Screen/Viewfinder. View Assist is NOT working with HLG, only with LOG.-There are some differences though: the midtones look more contrasty on the HLG preview and the shadows look more flat and a slightly greenish (shadows are more contrasty in the "View Assisted" LOG preview).
The Histogram and Zebras seem to be based on the image preview (e.g. histogram changes when I activate/deactivate the View Assist in LOG mode). And the lowest setting for Zebras is 80, means I cannot select 60 or 70 :-(
So I still need to get a feeling how to do a right exposure manually in HLG.

Watching HLG directly on 4K HDR LG TV:
This is looking great out of the box. I was using auto-exposure and autoWB for my first tests.

Watching HLG directly on SDR Monitor:
Some new findings here: the initial clip I used for testing had not many really dark areas and not many colors: there it worked OK. But now with some clips also in lowlight and with darker areas this has changed a little bit. Seems that on VLC it will only do the gamma correction, but no color space transformation. The Brightness is OK (not perfect though) and especially the shadows look greenish and colors are flat. The same applies to Plex btw: the HDR->SDR tonemapping seems to work with HDR10 content only.

Editing in Davinci Resolve (as SDR):
Using a node with color space transformation as shown here with adjusted setting here plus adding a little contrast is looking very good. No complaints here.

Summary for now:
I still have to find a good way to judge color and brightness when shooting HLG. For brightness I may start with Auto-ISO (that was working good in my tests so far) and then lock the exposure with AEL button during the video to avoid unwanted brightness changes.
Viewing the HLG (without editing) on an SDR monitor does not work as good as I did expect from my initial test, especially the colors are far too muted and off (greenish shadows) to my taste. Maybe there is a player that can do both gamma and colorspace transformation...

Click to expand...

HLG is a journey that for the wise man ends up with NOT using HLG hahaha

Click to expand...

I really want to like it: it looks great out of camera on the HDR TV.
In case I find a player for Windows that does the color and gamma conversion to SDR right, then this still can be a good option. Also the h265@25fps (both HLG and LOG) has much more detail than h264 or h265@60fps...

Click to expand...

SHood said:

abgestumpft said:

Interceptor121 said:

abgestumpft said:

Until now I only had this one clip I did during the Touch&Try event. Since my OM-1 arrived I was able to do some (quick) testing with HLG Video.

Here my first impressions/findings:

Image preview on camera:
The HLG looks similar to LOG+View Assist ON (=BT.709 conversion) on the OM-1 Screen/Viewfinder. View Assist is NOT working with HLG, only with LOG.-There are some differences though: the midtones look more contrasty on the HLG preview and the shadows look more flat and a slightly greenish (shadows are more contrasty in the "View Assisted" LOG preview).
The Histogram and Zebras seem to be based on the image preview (e.g. histogram changes when I activate/deactivate the View Assist in LOG mode). And the lowest setting for Zebras is 80, means I cannot select 60 or 70 :-(
So I still need to get a feeling how to do a right exposure manually in HLG.

Watching HLG directly on 4K HDR LG TV:
This is looking great out of the box. I was using auto-exposure and autoWB for my first tests.

Watching HLG directly on SDR Monitor:
Some new findings here: the initial clip I used for testing had not many really dark areas and not many colors: there it worked OK. But now with some clips also in lowlight and with darker areas this has changed a little bit. Seems that on VLC it will only do the gamma correction, but no color space transformation. The Brightness is OK (not perfect though) and especially the shadows look greenish and colors are flat. The same applies to Plex btw: the HDR->SDR tonemapping seems to work with HDR10 content only.

Editing in Davinci Resolve (as SDR):
Using a node with color space transformation as shown here with adjusted setting here plus adding a little contrast is looking very good. No complaints here.

Summary for now:
I still have to find a good way to judge color and brightness when shooting HLG. For brightness I may start with Auto-ISO (that was working good in my tests so far) and then lock the exposure with AEL button during the video to avoid unwanted brightness changes.
Viewing the HLG (without editing) on an SDR monitor does not work as good as I did expect from my initial test, especially the colors are far too muted and off (greenish shadows) to my taste. Maybe there is a player that can do both gamma and colorspace transformation...

Click to expand...

HLG is a journey that for the wise man ends up with NOT using HLG hahaha

Click to expand...

I really want to like it: it looks great out of camera on the HDR TV.
In case I find a player for Windows that does the color and gamma conversion to SDR right, then this still can be a good option. Also the h265@25fps (both HLG and LOG) has much more detail than h264 or h265@60fps...

Click to expand...

Did you use C4K for the 60fps. C4K provided the best results on the E-M1ii/iii.

Click to expand...