After yesterday's lament about faded old slides, Jeff sent me a helpful email about Photoshop's amazing curves function. A few simple adjustments, and this poor old snow leopard is no longer looking quite so pink.
Here's another scan of an old slide. This is my Uncle Arnold and a couple of my cousins, sometime back in the late 60s. The photo is awfully pink, so I'm going to follow Jeff's advice and use the curves tool to flush some of the red out.
Well, it's not perfect, but I think it looks a lot more natural than when I started. Thankfully the vast majority of the hundreds of slides I've scanned don't exhibit this extreme red tint. In fact, the only ones that have turned red are all of a strange non-standard variety; the film frame is much larger than a normal 35 mm slide, with a very narrow border.
CORRECTION: Mom tells me that this photo is probably not from the late 60s, but rather 1959 or 1960. Whoops! Thanks, Mom.