Yes... Velvia 50 in special makes yellows warmer and oranges redder, crafting impressive landscapes, this has an spectral footprint in the capture so there is no universal way to imitate velvia 50 well in Ps. In the same way a portrait made with Velvia 50 is to be pretty awful, and a long Ps session on it is not have a happy ending.
This is the film advantage, having dedicated mediums for different jobs. Sadly Astia was killed, it was really nice for portraits.
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