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Halation comparison between Resolve and Dehancer 

Stefan Ringelschwandtner
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Halation is a characteristic of celluloid film when a bright light bounces back a few times exposing the film a second time only affecting the red layer (and a bit of the green layer) of the film resulting in a reddish/orange glow. The Halation tint may be different based on white balance adjustments / color grading.
An anti-halation layer usually is a coating on the back of the film base, though it is sometimes incorporated between the light-sensitive emulsion and the base. Its purpose is preventing any light from being reflected back through the emulsion from the rear surface of the base, or from anything behind the film. This prevents a halo-like effect (halation). Even with an anti halation-layer there might be a Halo effect because the layer is not 100% black.

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17 сен 2024

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Комментарии : 15   
@Farbkanal
@Farbkanal Год назад
Halation still arises from backliight from the last layer of the anti halation layer behind the CMY layers. You show the difference very well and I totally agree that the Halation effect in DR is definitely very bad in comparison to other techniques. As always Stefan, great explained, on point 👍
@joecal2360
@joecal2360 Год назад
Brilliant as usual, Stefan! In fact, your implementation looks the most natural of the three. I do wish somebody would address the fundamental flaw in each one of these implementations, which is that not all film stocks are composed of the "standard" RGB stack shown in the educational diagrams we've all seen. Many stocks had additional narrow bandwidth layers of blue, green, cyan, or whatever combination, or the orders were inverted, so instead of RGB, the stocks were layered as RGBG, RGCB, RGBCM, etc.. The reason this interests me is that I hate the look of contemporary film stocks. I find them ugly. But I love the look of film stocks from the 70's, which never had orange or red halation, but always had strong blue or magenta halation, for the example in The Godfather, The Exorcist, etc. And because the halation is a long gradient, this tint essentially runs way into the midtones, giving these stocks their distinctive look. I understand that not many guys are interested in this vintage look; everybody wants either the Vision3 look or worse the Alexa look, both of which I find absolutely disgusting aesthetically, but if somebody could tackle the challenge of emulating Eastman 5254 / 7254, or Eastman 5247 / 7247, or Kodak Ektachrome (the slide version not the negative version) or any other vintage stock, I'd pay major money for it. But I digress. Keep up the fantastic work Stefan! Every time you put out a video I immediately stop what I'm doing and watch.
@StefanRingelschwandtner
@StefanRingelschwandtner Год назад
Thank you!
@hoobastanky
@hoobastanky Год назад
thank you so much !
@Dehancer
@Dehancer Год назад
Thank you for such an interesting video! We're also excited to announce that today we released our first iOS app for photo editing. Go check it our guys 😉
@toddpeterson5904
@toddpeterson5904 Год назад
Interesting. I usually think of halation in terms of the lens, not in post. Is this footage you shot or from a film?
@StefanRingelschwandtner
@StefanRingelschwandtner Год назад
You can google "Anti-halation backing" for more info. Halation is happening "in camera". Mostly visible on 8mm and 16mm film. The footage in my video is Stock Footage from Arri Alexa LogC 3.
@toddpeterson5904
@toddpeterson5904 Год назад
@@StefanRingelschwandtner Thanks Stegfan, I'll read up on this. I wish I had more experience with film. I started with digital and haven't had a chance to shoot film (yet). Even on digital, it's a key consideration when I choose lenses. For instance, the Arri DNA lenses and some vintage lenses will give you more halation from light sources contributing to a more period or fantasy look. It seems like these tools are a digital version of removing the backing on film?
@StefanRingelschwandtner
@StefanRingelschwandtner Год назад
@@toddpeterson5904 A "halo" glow from a lens is a different thing. Even with an "Anti-halation backing" it can happen that the light is so strong that it will expose the red layer a second time, and that causes the halo effect around contrast edges. I think a lof of films that has been shoot on 16mm has an "Anti-halation backing" and you can still spot some halation here and there. The Halation tools from Resolve or Dehancer are just "emulating" this phenomenon, which occurs in different strength.
@budiherryanto
@budiherryanto Год назад
Plan to invest in your mononodes plugins ❤❤❤.
@aureliorodriguez9942
@aureliorodriguez9942 Год назад
Is there a tutorial somewhere for your halation node tree?
@StefanRingelschwandtner
@StefanRingelschwandtner Год назад
Yes. You can check "photochemical film look" on my website mononodes.com, and you will find a tutorial how to build a halation node tree. The "Halation" I am showing here is the same method, but I added two more nodes that give me slightly more control. It is a bit more "advanced". The "advanced version" is available in my "film emulation" pack.
@aureliorodriguez9942
@aureliorodriguez9942 Год назад
@@StefanRingelschwandtner Thank you so much!
@kllodiahrasak1724
@kllodiahrasak1724 Год назад
👍👍👍👍❤❤
@rangakahalestudios8393
@rangakahalestudios8393 Год назад
All halations are attention grabber in a bad way.
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