Quote Originally Posted by jp498 View Post
Skin shows filtration quite a bit; observe the freckles between film types. Both unfiltered. More blue sensitivity would make blemishes/freckles more prominent.

I don't have an outdoor tri-x photo for you, but

here's tmax 400:

here's foma 100:
The lighting conditions look highly dissimilar. To see any comparative difference I would say you'd need identical lighting in both shots.