Ambrotype multi-LUT profile creation process

A couple pictures taken during ambrotype profile creation process. Emulsion watering, shooting and the developing by Anatole Green.

We’ve took 3 negative pictures on glass plates — normal, under and over exposure. After that have scanned them on velvet background as positive and made mLUT (multi-LUT) profile using our non-linear mathematics. How it works in Dehancer you can see on example below.

Those hues are natural as it is, without desaturation or colorize post-processing. In reality, the underexposed ambrotype also looks like a bronze-green, and the overexposure is more yellow.

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