Jump to content

Help - Canon 5D IV Canon LOG LUT Issue


chadandreo
 Share

Recommended Posts

I was wondering if anyone could help me with an issue I am having with Canon Log footage from the 5D Mark IV.

In Premiere Pro, when I add Canon's Canon LOG to 709 LUT to the footage from the 5D, the highlights are completely blown on and the image is very contrasty, even though everything is perfectly exposed. I have tried the LUT on low contrast indoor scenes and high contrast outdoor scenes and the results are the same.

 

Does anyone know what I am having this issue?

Link to comment
Share on other sites

Maybe you took the Canon Log2-LUT by mistake?

For Canon Log1 or Log3 I normally use the Log to WideDR LUTs, either:

- BT709_CanonLog-to-BT709_WideDR_33_FF_Ver.1.1.cube

or

- BT709_CanonLog3-to-BT709_WideDR_33_FF_Ver.1.1.cube

If one of those blows your Highlights maybe it's a setting in Premiere (wrong Colorspace or something like that) that causes you issues...?

Link to comment
Share on other sites

1318896337_Bildschirmfoto2019-10-29um22_45_24.thumb.png.64750032c891907c158a871043a1ac90.png

This is what a Screenshot of your Grab with the lut BT709_CanonLog-toBT709_WidDR_33_FN_Ver.1.1 looks like in FCPX. Not great, but neither blown out. And it's just a screen grab from a screen grab... So I assume the lut should look better on the original video. You find it in the official lut-package from the C200 support page (i assume it's the same in other cameras support pages?): folder path: 3dlut -> 33grid-3dlut -> full-to-narrow-range

That specific lut is attached...

I tried a 2020-to-709 lut too and it gives the blown out highlights. So maybe your premiere project thinks your original media is in 2020 color space if this happens with a 709to709 lut? I'm not too familiar with the Adobe suite so can't help you with how to possibly fix that...  

 196494731_Bildschirmfoto2019-10-29um22_50_04.thumb.png.9475a25d42f7812d49d51dd1da6dbb6e.png

BT709_CanonLog-to-BT709_WideDR_33_FN_Ver.1.1.cube

Link to comment
Share on other sites

You're clearly using the wrong LUT.

The latest official Canon Log LUT pack from Canon website is "canon-lut-201902.zip" and most of them are tagged version 1.1 or 1.2.

And if you use "CanonLog-to-BT.709_BT.709", yes it'll clip like that, this one does not have any tone-mapping.

Use the one with "BT.709_WideDR".

Link to comment
Share on other sites

1 hour ago, androidlad said:

You're clearly using the wrong LUT.

The latest official Canon Log LUT pack from Canon website is "canon-lut-201902.zip" and most of them are tagged version 1.1 or 1.2.

And if you use "CanonLog-to-BT.709_BT.709", yes it'll clip like that, this one does not have any tone-mapping.

Use the one with "BT.709_WideDR".

I download the most recent LUT pack from Canon last week. 

I tested out the following LUTs:

- CanonLog_10-to-BT709_FF_Ver.2.0.cube

- CanonLog_10-to-WideDR_FF_Ver.2.0.cube

- BT709_CanonLog-to-BT709_WideDR_17_FF_Ver.1.1.cube

- BT709_CanonLog-to-BT709_WideDR_17_FN_Ver.1.1.cube

 

This is the final result I got using PP Lumetri. I think it looks good, but I am not 100% happy with it due the amount of artifacts and noise at base iso, but I was able to correct those issues using Neat Noise.

Misha and Connor IG Teaser.00_00_13_03.Still003.jpg

1 hour ago, Michi said:

1318896337_Bildschirmfoto2019-10-29um22_45_24.thumb.png.64750032c891907c158a871043a1ac90.png

This is what a Screenshot of your Grab with the lut BT709_CanonLog-toBT709_WidDR_33_FN_Ver.1.1 looks like in FCPX. Not great, but neither blown out. And it's just a screen grab from a screen grab... So I assume the lut should look better on the original video. You find it in the official lut-package from the C200 support page (i assume it's the same in other cameras support pages?): folder path: 3dlut -> 33grid-3dlut -> full-to-narrow-range

That specific lut is attached...

I tried a 2020-to-709 lut too and it gives the blown out highlights. So maybe your premiere project thinks your original media is in 2020 color space if this happens with a 709to709 lut? I'm not too familiar with the Adobe suite so can't help you with how to possibly fix that...  

 196494731_Bildschirmfoto2019-10-29um22_50_04.thumb.png.9475a25d42f7812d49d51dd1da6dbb6e.png

BT709_CanonLog-to-BT709_WideDR_33_FN_Ver.1.1.cube 947.77 kB · 0 downloads

Thanks. Let me test out the different color spaces and see if it makes a difference. 

Link to comment
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.

 Share

×
×
  • Create New...