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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

DaVinci Resolve Lite TUTORIAL > Qualifiers, Power Windows and Balancing Basics

Nice
 
Anything you do Matthew is not considered boring :)
 
thats was great...thanks for making it informative but also light and quick and happy
 
Very nice, Matt! You've taken me from intimidated to energized. I'm going to go play around a bit with Resolve right now.
 
Very much appreciated, Matt!
 
While I like the explanation given for setting up keys, I would offer a warning about using lift gain and gamma controls to fully correct a log image. In doing so, you're not correcting for the nonlinear nature of a log curve. The result of that is that your mid to upper midrange is always going to be somewhat flat, especially if the image is even slightly overexposed. In order to recover a proper greyscale, you must apply an S-curve to the image to "de-log" it into a proper image. You can do this using either a log to video lut or a curve control, but failure to do so will inevitably lead to flat images, especially on properly lit faces - which is exactly what I see here. And no, crushing the gammas does not accomplish the same thing. I wrote up a fairly extensive article about this some time ago on my blog (mikemost.com) if anyone wants to look at it.
 
Matthew,

This tutorial (and all of the others) is GREAT!
Very easy to follow and understand. Not boring at all. I got a LOT out of it.
Very much appreciated.
 
M Most said:
While I like the explanation given for setting up keys, I would offer a warning about using lift gain and gamma controls to fully correct a log image. In doing so, you're not correcting for the nonlinear nature of a log curve. The result of that is that your mid to upper midrange is always going to be somewhat flat, especially if the image is even slightly overexposed. In order to recover a proper greyscale, you must apply an S-curve to the image to "de-log" it into a proper image. You can do this using either a log to video lut or a curve control, but failure to do so will inevitably lead to flat images, especially on properly lit faces - which is exactly what I see here. And no, crushing the gammas does not accomplish the same thing. I wrote up a fairly extensive article about this some time ago on my blog (mikemost.com) if anyone wants to look at it.
Click to expand...

Hey Mike, thanks for your input and expertise :) do you really think my final image and skin looks flat? I do have a contrast curve in my chain ready to combat the issue you talk about but didn't feel it needed it. That being said, I'm not exactly a high end, full time colorist, so yeah, I'm basically self taught and probably do a lot wrong....although I feel like I know how to create pleasing images. I'll be sure to check out your blog, thanks again :)
 
Mike, you've got me thinking now! Thanks again for taking the time to share your knowledge.... Another great reason to love RedUser!
 
Matthew Scott said:
Hey Mike, thanks for your input and expertise :) do you really think my final image and skin looks flat? I do have a contrast curve in my chain ready to combat the issue you talk about but didn't feel it needed it. That being said, I'm not exactly a high end, full time colorist, so yeah, I'm basically self taught and probably do a lot wrong....although I feel like I know how to create pleasing images. I'll be sure to check out your blog, thanks again :)
Click to expand...

I think you made a pleasing image, don't get me wrong. But the face has almost no modeling, in part because in order to get more contrast in that area of the greyscale using your method, you would have to crush the blacks or crush the gammas, causing other issues to appear in other parts of the image. I know colorists - some good ones - who don't use LUTs or curves. And sometimes they get good results, mostly because they're experienced enough to know just how far they can go. But most of those colorists come from an earlier era, working on devices like the DaVinci 2K, from video images, not the log based camera originals we deal with today. And in general, they are basically "old dogs" who don't really want to learn "new tricks." So they're using what are quite frankly outdated and inappropriate approaches to get a reasonable correction, and are working much too hard to do it. Using a proper processing path will always yield a better result given the same level of talent.
 
Yes, I hear you :) efficiency is defiantly not part of my coloring skill set....it's time to change, and when it clicks I'll make a new tutorial hehe, thanks again :)
 
M Most said:
While I like the explanation given for setting up keys, I would offer a warning about using lift gain and gamma controls to fully correct a log image. In doing so, you're not correcting for the nonlinear nature of a log curve. The result of that is that your mid to upper midrange is always going to be somewhat flat, especially if the image is even slightly overexposed. In order to recover a proper greyscale, you must apply an S-curve to the image to "de-log" it into a proper image. You can do this using either a log to video lut or a curve control, but failure to do so will inevitably lead to flat images, especially on properly lit faces - which is exactly what I see here. And no, crushing the gammas does not accomplish the same thing. I wrote up a fairly extensive article about this some time ago on my blog (mikemost.com) if anyone wants to look at it.
Click to expand...

Dear Mike,

Where do you usually place the LUT? On the first node (and do the grading in the following nodes) or on the last node (and do the grading "under" it, in the previous nodes)?
Thanks!

George
 
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