Comment by tgb

What causes the halos in this film? I notice whenever there is an unusually light or dark spot, it gets a halo around it of the opposite lightness. See his hand as he starts writing shortly after this time stop to see what I mean: https://youtu.be/1LwkljjLBns?list=PLelIK3uylPMFHC6Xny11XFXgw...