I'm still intrigued but I'm not getting exactly what your selling and how to use it. The PDFs read like a biochemistry article on the subject of focusing and film flatness, I need to see an instruction manual and an actual 1-2-3-4 step process of what it is I'd be using and how I'd use it.
Is there a glass sheet that I tape my 8x10 film onto that I slide into some sort of special film holder you provide?
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