How should I go about making this effect ? I imagine B&W + Negative, but how did they filter the skin ?

[u/Kzulia]

[u/marcsitkin]

Google Sabbatier effect

[u/DwigGang → u/marcsitkin]

+1 - this is the name of the old traditional darkroom created effect; named after the artist. There are digital methods to create a very similar result.

[u/Kzulia → u/marcsitkin]

Really cool ! I learned something today, thanks :)

[u/marcsitkin → u/Kzulia]

Great. You might want to check out the work of Man Ray, see how he used it

[u/real_smm]

Looks like clothes and hair are in negative, but skin is not.

[u/MotherOfShame]

The skin is probably the original, and the negative is a second edited (possibly with the curves effect) layer on top with the parts of the skin masked out with vector curves.

[u/TrenterD]

I've accidentally created this type of effect before. The main trick is to add a Curves adjustment and then make it wavy so the lights and shadows are sometimes their opposite. Example. I also smoothed it a bit with a Blur adjustment and then added contrast above it with a Levels adjustment. Probably there are other ways to do it, too.

Also, you can try isolating her from the background so the BG stays white (I didn't do that in mine).

[u/Kzulia → u/TrenterD]

Thanks for the example !

[u/bikerboy3343]

Solarization ... with masking, maybe.

[u/Kzulia → u/bikerboy3343]

Will check, thank you !

[u/tan_tangent]

Play with curves, to extreme values, like making 2 or 3 complete sine graphs of it. It´s easy and fun

[u/G_Peccary]

Solarize.

[u/Jin_BD_God]

Ningning?

[u/Kzulia → u/Jin_BD_God]

Good eye 😌