I just received my film back from the lab. It's one of my remaining rolls of Ektachrome reversal 16mm film. Upon projecting it, i realized in horror that the majority of the footage- especially in the shadows- have a reddish orange tint.
If the film was shot under tungsten lighting, I'd blame myself, but it was shot on a bright sunny day. I did not use any filters. The film looked consistently slightly underexposed, which may be my fault.
I can't think of any other reason for the orange hue, other then that something went wrong during processing. Could it be anything else? X-rays may