News — chemistry

SP-FastFix Let’s start by acknowledging that Fixers are seriously underappreciated. If not for the ability to “fix” our negatives and prints, “photography” would have remained nothing more than a laboratory curiosity. The term “fix” is a bit odd. We’re not really fixing anything, we’re actually removing the unexposed, undeveloped silver ions from the emulsion. Which, if not removed, would eventually “develop” on their own into opaque solid silver and ruin the image. So what's the problem that needs "fixing"?  Typically, fix either came in a slow acting but dusty powder or an awkward to ship, but fast acting, liquid. We...