Magic Lantern Forum

Using Magic Lantern => Raw Video => Raw Video Postprocessing => Topic started by: daam on October 08, 2020, 11:12:12 AM

Title: Dual ISO issues in MLV App
Post by: daam on October 08, 2020, 11:12:12 AM
Hi

Im trying to render an HDR video using dual ISO in ML (100/1600) and MLV app.

Here are my settings in MLV App

https://imgur.com/a/NFjfffF

This is what I get with Dual ISO ON in MLV App :



This is what I get with Dual ISO OFF in MLV App :



Could you please let me know what Ive done wrong ?

Thanks
Title: Re: Dual ISO issues in MLV App
Post by: theBilalFakhouri on October 08, 2020, 12:42:32 PM
Hello

HDR isn't Dual ISO (https://www.magiclantern.fm/forum/index.php?topic=7139.0)

Just Enable "HDR blending" in MLVApp export settings:
(https://i.ibb.co/gMQLMLT/33.png) (https://imgbb.com/)

You should be fine.
Title: Re: Dual ISO issues in MLV App
Post by: Kharak on October 08, 2020, 12:43:09 PM
You mix up HDR Recording and Dual ISO recording.

HDR Recording alternates between 100 and 1600 every other frame e.g. the flickering you are seeing. And needs to be merged/blended. Search the forum for post process of HDR.

Dual ISO records 100/1600 ISO simultaneously (every frame), but every other Pixel Row is 100,1600,100,1600 etc. And also has to be merged with Dual ISO Post Processing.
Title: Re: Dual ISO issues in MLV App
Post by: daam on October 09, 2020, 11:36:14 AM
Thanks Kharak and theBilalFakhouri
I was indeed confused and mixed up HDR and Dual ISO.

I'm trying to film HDR for real estate. Dual ISO doesn't seem to have the dynamic range I need.

I think HDR recording should be what I need. However, every links I find for tools are dead. Ive found this video https://www.youtube.com/watch?v=5me5jEr4ldQ explaining the process. But all the links here are dead : https://wiki.magiclantern.fm/userguide#hdr-video

Where can I find the most up to date tools and workflow tutorials ?

Thanks a lot for your help