It's probably fine. FP100c is very stable even a few years out from expiration. Unless it's been really badly stored it should be like new, or close to it. I've been shooting boxes that expired in 2001 with success, although they definitely do start shifting after about 10 years from expiration.
When my B&W Fuji peel-apart became out-dated, I got un-even development; streaks across the image, I suspect from dried out developer in the pod. I'm planning on exposing all my FP-100C before expiration date to make sure the same thing does not happen again.
With Polaroid products in the olden days, I always started with box peed and normal exposure to figure out how “off” the film went. But almost more importantly was determining I’d the goo was still any good. If goo coverage is bad then what’s the point of guessing an adjustment in exposure.
With Polaroid products in the olden days, I always started with box peed and normal exposure to figure out how “off” the film went. But almost more importantly was determining I’d the goo was still any good. If goo coverage is bad then what’s the point of guessing an adjustment in exposure.