These charts are for Fomapan 100's Reciprocity failure. They are designed to help you get the adjusted exposure for Fomapan 100 film in metered time 1 second or greater. You will notice that the actual exposure time jumps from double for 1 second exposure to 7x for a two second exposure. This film is very unforgiving to underexposure. Thankfully we have charts to help you get the right exposure.
The Formula and chart.
This post isn't so much my own work as it is blatant plagiarism for a good cause. I've spent a lot of time trying to hunt down a good chart of Fomapan 100's reciprocity failure. If you're reading this you've probably been searching too and found my blog. Canon_Patrick over on Flickr created this.
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