FS7: SLOG 3 with ImpulZ Luts 4K

Looks Good. I have the impulz lut pack but haven't tried it with Slog3 yet. I wish you could load them all onto a card to output some of these stocks to director monitor.
 
I noticed that as long as I exposed properly for slog and didn't have to mess with it much, the footage was pretty clean. As soon as I had to push the image with the three way color corrector (like bringing down the blacks, messing with the mid tones or bringing down the highlights), I would introduce noise into the image (some times even little blocks). I wonder why that is:

1. Could it be the codec for 4k can't take a lot of manipulation?
2. Does Adobe Premiere Lumetri have limitations?
3. Is it the impulZ luts themselves?

Also, the Impulz luts like the slog the way I exposed it. The Sony luts looked too hot and the video levels need(ed) to come down).
 
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Don't forget to do a slight (18-20%) chroma noise reduction before applying the LUT, it solves the nastier colour transformation artifacts.
 
Thanks for this. I just got the ImpulZ Luts and it's a bit overwhelming how many of them there are. This is great because it gives a quick preview of the good ones.
 
Regarding the degradation of the image when you color correct, does your sequence settings match the 10-bit material?

Premiere Pro is by default set to 8 bit (255 colors) to speed up editing and material handling. To properly grade 10-bit or higher, material in PP, you need to change the settings to allow for such information to be manipulated. If left to 8-bit, any color work will indeed look like its done on 8-bit files.

In short, have you turned on "Maximum Bit Depth"?
 
Martin.G said:
Regarding the degradation of the image when you color correct, does your sequence settings match the 10-bit material?

Premiere Pro is by default set to 8 bit (255 colors) to speed up editing and material handling. To properly grade 10-bit or higher, material in PP, you need to change the settings to allow for such information to be manipulated. If left to 8-bit, any color work will indeed look like its done on 8-bit files.

In short, have you turned on "Maximum Bit Depth"?
Click to expand...

just asking, didn't know that - so if we're working in a xavc or prores sequence, grading should be fine, i suppose? Does that also count for the dynamic link over to speedgrade?
 
Im not sure Stefan. I always turn it on by default, as i most often have the system resources to spare so that i can handle the extra CPU workload.

A google search could probably reveal an answer perhaps.
 
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