Sage

Here are side by side Log shots (matched exposure & white balance) converted with a film conversion software that is supposed to match Kodak 5213.
These should be identical -
GH5 V-Log to the software's Kodak 5213:

Alexa LogC to the software's Kodak 5213:

Now, GH5 V-Log converted to GHa LogC, and then to the software's Kodak 5213:

And last, an idea of what the Kodak 5213 conversion is supposed to look like, from the software's website:

Yes, please, feel free to share. I am excited to see how people use it in their own work; quite a few have it by now.
Tihon (above) sent me this:

And here is Ryan Glover's work (from dvxuser):


And Jeremy Dulac's sample (dvxuser):

Just bumping this topic to see if anyone has used it yet. I'm interested to see some examples. I haven't been shooting with my GH5 lately so have no need to buy it yet, but I'm curious to see how many others have taken the plunge.

That's right, it's just the LogC to 709 (contrast/sat)

Ah, the 709 for LogC - I didn't remember seeing your email, now it makes sense. Take a look at this.

"As detailed in the PDF, the conversion is not simply a shift in known format parameters. You can use LutCalc or buy Lattice to create a tailored V-Log to LogC conversion, which will give you more 'Alexa-like' colors. I know this, because indeed I bought Lattice in my dogged pursuit of getting something more Alexa-like. But as you have likely noticed, the result is far from an accurate match to an Alexa. I made this first and foremost for myself, because I really wanted a true conversion"

Sure; the essential reason for this is to achieve a more accurate (and visually pleasing) conversion for the given light source.
Here is a longer description I wrote on Dvxuser:
"There are two things which combine to result in a color science output; these are the sensor response and the interaction between white balance and color space. In the case of sensor response, this is the wavelengths of light that the RGB photosite dyes allow in to constitute red, green, and blue, and how the pipeline interprets and sums this base signal. Because of this, different sensors will 'see' different results in the same light source. While daylight and tungsten are highly predictable, leds and flourescents are highly variable in their exact wavelength distribution. For a fully accurate conversion, one must be made for each distinct light source. Each new conversion is work intensive. In the case of white balance interacting with color space, each profile - and each white balance of that profile - will differ in the same camera with the same light source. All of these moving parts constitute a fully complex system with a predictable result given fixed conditions. I am working on ideas to tackle this (a conversion for each fluorescent tube, each led dial setting, etc. would not be practical)."
Perhaps I will make examples of how each light source looks processed with both conversions, so that you can decide what works best for you.

People have been asking to have an example of the Alexa conversion on HLG footage, and want to know if it is as good as VLog
It is a precision match; I finally got around to shooting a comparison, and here are the stills.
HLG, HLG with GHa Tungsten Main (no further alteration), VLog, and VLog with GHa Tungsten Main (no further alteration)
Also, something interesting and useful coming soon.

 

People have been asking to have an example of the Alexa conversion on HLG footage, and want to know if it is as good as VLog
It is a precision match; I finally got around to shooting a comparison, and here are the stills.
HLG, HLG with GHa Tungsten Main (no further alteration), VLog, and VLog with GHa Tungsten Main (no further alteration)
Also, something interesting and useful coming soon.

 

Here is a gif comparison of the unaltered GHa Tungsten Main conversion, and original V-Log color with matched contrast and saturation:
 

Here is a gif comparison of the unaltered GHa Tungsten Main conversion, and original V-Log color with matched contrast and saturation:
 

Here is a gif comparison of the unaltered GHa Tungsten Main conversion, and original V-Log color with matched contrast and saturation:
 

Go you Attila! That's actually a pretty close description of my first process.
What I've done since is the hush hush part  ; )
Hang in there. Indeed, I intend to beat that price ; )
Its a tale of two markets; before I added HLG support, which reduced the effective price by $100, people told me the price was low. After HLG, it seems that the market opened to those who wouldn't have considered it before because V-Log was a no-go (it was originally going to be V-Log only)
Its best that the market for the pro variation is smaller. A neutral color science shift is a subtle thing, and only those who feel that this price is a giveaway, have worked with Alexa footage and know what to expect should get it. I want to include powerful looks with the lower cost version, as well as reduced technical complexity.

"GH5 V-Log and Hybid Log-Gamma are transformed to precisely match the color science of the Alexa, without compromise."
"The GH Alex conversion completely transforms the GH5 image, addressing every nuance of color reproduction (from shadows to highlights, low saturation to high saturation, for every possible hue). This includes an organic rolloff which fully eliminates channel clipping."
EmotiveColor.com
PDF

YouTube

Thanks Majoraxis. With the LogC conversion, V-Log L effectively becomes LogC, so you can then use the footage as you would Arri LogC. In the case of Logarist, they support LogC directly. Though, I think you will find the results of the Main and Soft conversions to be ideal. In terms of special Resolve considerations, it is important to ensure that your clips are set to 'Full' or 'Data' luminance levels, under Clip Attributes. And, as with Premiere, place any white balance correction before the conversion node in the chain (and use the tint and temperature controls to alter white balance). All other color alterations go after the conversion node.
The software I'm referring to there is my own, geared to a very particular task
Thanks Oliver. The native color science is indeed difficult, especially tungsten. I may introduce something next year that will be a simplified, budget conscious option

I can say, several pieces of software in chain. However, I will be coding something that will fine tune the process, and simplify it to one.
Thank you austinchimp.
I hear you about the luts; I bought many of the Alexa-like luts in my quest. Support for Hybrid Log-Gamma was just added, and something *may be released next year that will be more budget and hobbyist oriented.
No one will pay more for the conversion to be a reality than me. It was a huge savings for me though, because the used Alexa package that I almost bought last year was over $20K for everything that I needed to get it to work (and the GH5 moves a lot better)
I am preparing a series of Gif comparisons to demonstrate the difference between native GH5 color and the unmodified main GHa conversions. If you would like to see the conversion in action, send me stills from raw footage

Thanks Kaylee! It is a legacy piece for me, that I'd been meaning to do since before the GH5. I wanted to upstage the early work, and do something spectacular
Thanks Mercer - it was a hacked GH2, set to Smooth -2. I also used a Speedbooster with Nikkor Series E lenses.

"GH5 V-Log and Hybid Log-Gamma are transformed to precisely match the color science of the Alexa, without compromise."
"The GH Alex conversion completely transforms the GH5 image, addressing every nuance of color reproduction (from shadows to highlights, low saturation to high saturation, for every possible hue). This includes an organic rolloff which fully eliminates channel clipping."
EmotiveColor.com
PDF

YouTube

"GH5 V-Log and Hybid Log-Gamma are transformed to precisely match the color science of the Alexa, without compromise."
"The GH Alex conversion completely transforms the GH5 image, addressing every nuance of color reproduction (from shadows to highlights, low saturation to high saturation, for every possible hue). This includes an organic rolloff which fully eliminates channel clipping."
EmotiveColor.com
PDF

YouTube

"GH5 V-Log and Hybid Log-Gamma are transformed to precisely match the color science of the Alexa, without compromise."
"The GH Alex conversion completely transforms the GH5 image, addressing every nuance of color reproduction (from shadows to highlights, low saturation to high saturation, for every possible hue). This includes an organic rolloff which fully eliminates channel clipping."
EmotiveColor.com
PDF

YouTube

Thank you Jonesy Jones, I really appreciate that.
I will take it into consideration. Just one light source conversion may still be used on other light sources to good effect. It is likely that it won't earn back what it cost to make, but it is something that I personally really wanted and was passionate about having (I was seriously considering used Alexas last December). Also, the research and development put into this may prove vital in my next, more costly, effort.
Currently available color solutions (FilmC) are far from accurate, and are best described as 'looks'. This is something different, and I intend to raise the standard for *conversions specifically (color transformations that should make one format look exactly like another)

Thank you Jonesy Jones, I really appreciate that.
I will take it into consideration. Just one light source conversion may still be used on other light sources to good effect. It is likely that it won't earn back what it cost to make, but it is something that I personally really wanted and was passionate about having (I was seriously considering used Alexas last December). Also, the research and development put into this may prove vital in my next, more costly, effort.
Currently available color solutions (FilmC) are far from accurate, and are best described as 'looks'. This is something different, and I intend to raise the standard for *conversions specifically (color transformations that should make one format look exactly like another)

"GH5 V-Log and Hybid Log-Gamma are transformed to precisely match the color science of the Alexa, without compromise."
"The GH Alex conversion completely transforms the GH5 image, addressing every nuance of color reproduction (from shadows to highlights, low saturation to high saturation, for every possible hue). This includes an organic rolloff which fully eliminates channel clipping."
EmotiveColor.com
PDF

YouTube

"GH5 V-Log and Hybid Log-Gamma are transformed to precisely match the color science of the Alexa, without compromise."
"The GH Alex conversion completely transforms the GH5 image, addressing every nuance of color reproduction (from shadows to highlights, low saturation to high saturation, for every possible hue). This includes an organic rolloff which fully eliminates channel clipping."
EmotiveColor.com
PDF

YouTube

"GH5 V-Log and Hybid Log-Gamma are transformed to precisely match the color science of the Alexa, without compromise."
"The GH Alex conversion completely transforms the GH5 image, addressing every nuance of color reproduction (from shadows to highlights, low saturation to high saturation, for every possible hue). This includes an organic rolloff which fully eliminates channel clipping."
EmotiveColor.com
PDF

YouTube