Russell Abraham is a famous west coast architectural photographer and I was his studio manager. We used to buy 4x5 Ektachrome in big batches, burn a dozen sheets for color tests, then put it in the deep freeze. I only recall being pressed into flesh-tone-dummy service this one time. It was fun. I still have those shades, which are pinhole specs, not sunglasses. I was a hotshot San Francisco kid in my own mind in the late '80's; gotta get that black head o' hair back!