[thr-nrg]

https://clarkvision.com/articles/eye-resolution.html

>The 10600 pixels over 20 inches corresponds to 530 pixels per inch, which would indeed appear very sharp. Note in a recent printer test I showed a 600 ppi print had more detail than a 300 ppi print on an HP1220C printer (1200x2400 print dots). I've conducted some blind tests where a viewer had to sort 4 photos (150, 300, 600 and 600 ppi prints). The two 600 ppi were printed at 1200x1200 and 1200x2400 dpi. So far all have gotten the correct order of highest to lowest ppi (includes people up to age 50). See: http://www.clarkvision.com/articles/printer-ppi

I have no idea why everyone forgot how shit 300dpi printers were and how much crisper 1200dpi looked.

[dwaite]

You have to be careful with such comparisons - a 300 dpi printer will effectively run at a lower DPI if you require dithering.

Even if you could only see 300 dpi, a B&W 1200 dpi printer may still effectively add greyscale information beyond the output you would get at 300 dpi.