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Sage

GH5 to Alexa Conversion

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On 8/23/2019 at 5:27 AM, jackch2n said:

Hi Alex! May I know when will the Pocket 4K Conversion be available? Can't wait to use it on my 4k xD

I'm not sure yet, there is much to do. I am working at a consistent pace of late; I put in a few 14 hour days last week. Every day, I'm working as efficiently as I can.

10 hours ago, JeremyDulac said:

Is this bit going to be useful with highlight recovery?

Yes, that intended HR handling I described has worked with flying colors (pun intended) and the files will be compatible with HR by default (reaching up into the 'super' values to conform them to LogC). Paired with the recent 129x129x129 HDR luts, this will mean superior performance for clipped gamut, especially extreme blue (although these colors are rare in everyday footage)

Just yesterday, I finished the new EC component completely. At the heart of it are two 129x luts in sequence - they are 84MB each 😮 (the final files will be traditional 65x). It turned out that the final critical piece of the puzzle was to recode to handle negative numbers for 'theoretical' color regions when color is hyper saturated (combined with 129x). I am very happy with the performance of this new EC component; it is a perfect match to the primaries of Arri 709 at center, with 2020-like gamut handling at the edges, in a 709 envelope, and the smoothest conversion I have yet made.

10 minutes ago, Justforfun said:

Has anyone tried this on the S1 vlog? Wondering if I should wait for that one or the GH5 version is close to optimized with the s1

I think some with an S1 have it. Its not optimized for the S1, but the conversions do take into consideration this theoretical space (no clipping) above the GH5 range. In the case of S1 use, I advise lowering highlights in advance of the conversion (ideally with hue lock as in the pdf) to dial in range. I'm not sure when I'll be able to support the S1; all is resting on my ability to be as efficient with my time as possible.

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3 hours ago, Justforfun said:

Has anyone tried this on the S1 vlog? Wondering if I should wait for that one or the GH5 version is close to optimized with the s1

I have used GHA with the S1's HLG with middling results, to get it to try and match the GH5 in interview settings. It's pretty tricky, but with some tweaking it can look pretty good. Not nearly as easy as with the GH5 though. 

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19 hours ago, Sage said:

I think some with an S1 have it. Its not optimized for the S1, but the conversions do take into consideration this theoretical space (no clipping) above the GH5 range. In the case of S1 use, I advise lowering highlights in advance of the conversion (ideally with hue lock as in the pdf) to dial in range. I'm not sure when I'll be able to support the S1; all is resting on my ability to be as efficient with my time as possible.

Just shot a super cinematic short doc in Brazil on the S1 in V-Log, would loveee to try your bespoke S1 conversion as soon as it’s available - even if a prototype. Any idea when that could be?

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On 8/26/2019 at 3:56 PM, njekolino said:

any update on the xt3 update?

Still working on the P4K. Though with the P4K, its 'EC2.0' that is the focus. Everything has been revised and dialed in. That new standard foundation will be able to be brought to new cameras much more efficiently once out

On 8/27/2019 at 3:53 AM, Miguelsantana said:

Just shot a super cinematic short doc in Brazil on the S1 in V-Log, would loveee to try your bespoke S1 conversion as soon as it’s available - even if a prototype. Any idea when that could be?

Not yet; you can expect things to move faster once the P4K is out. Dave Maze posted an S1H review using GHa on the sample footage sections (not sure how different it is from the S1):

 

 

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They did a very good job with it; I had read that they shot it in Natural, and used another conversion to first match it to VLog (hence a blue artifact at :35). A Natural Pre would alleviate this, but alas only so much time in the day

Here are my favs of late; @Germy1979 of this forum shared this stunner with me (fav shots are at the end especially):

This was posted on FB a couple days ago; beautiful color and light (ironic given its title image..):

And this one was brilliant:

 

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