The measurements seem out. It’s this in thee olde worlde imperial system perhaps?
Ppi is pixels per inch so I’d guess the measurements are in football fields or busses or whatever it is the Americans use at the moment to avoid the metric system
Their new unit is Donald-Trump-Hands.
300dpi is the industry standard baseline for printing, 150dpi is not “excellent” it’s barely usable without pixelation being visible in the print.
Viewing distance is a big factor with regards to the acceptable resolution, which is ignored here.
Ew the x-axis shows no unit and the y-axis shows the unit in the tick marks?
The film data is way over ambitious. I don’t think blowing a 35mm negative up to 16x20 is “superb.”
A 50 ISO is great a 800 ISO is shite.
This chart is very difficult to read for those with color deficiency - about 8% of men. Good and Fair are nearly the same, as well as Better and Superb. It would have been really easy to just use 5 shades of gray, or 5 colors that are distinguishable in greyscale.