i love the smell of a darkroom , but only black and white chemistry (plain old developer and fixer, stop's ok, too). color chemistry (bleach fix replenisher, etc.), which i only know from processors and not hand (but no one does that, anyway), smells like it's melting my nose hairs . but color chemistry is corrosive and b & w isn't, so there's the explanation for that right there. i have a theory that photographers live long 'cause of the chemistry. historically, many have lived super-long. (don't bring up people like herb ritts to try to disprove my theory; dying from complications of aids doesn't count.) i think it preserves the breed .