From the IJM website, we read
…You can easily over resolve the resolution of your film. That is to say, you can easily scan in higher resolution than your film has silver grains - and that is not desirable…
…So how much is enough? In Piezography, you can not have enough (with respect to over-resolving)…Piezography prints at significantly higher resolution…"
I have a thousand or two 2-1/4" negatives my father shot around 1960. They only say ‘KODAK Safety Film’, I don’t see any reference to the stock used like 35mm does. It is B/W. Regarding the scanning resolution, what would be best, assuming I scan on my Epson V600 (CCD), 16bit, as a positive and no adjustments. I plan to select a set (from contact sheets, not scanning the entire archive) to print with Piezo HD-Carbon on PhotoRag308 at 16x16" image.
Well, I may decide to get the final set scanned drum with liquid mount. I would still want to know best resolution.
Finally, so what would the effective output resolution of Piezo on matte rag paper be? I’m just curious, the guide isn’t clear on that.