Digital BW, The Print

Try discussing
> exposure, a photographic subject (rather than a printing subject),
without
> mentioning seconds, aperture and ISO.

IT'S EASY... done forever by thousands of fine photographers and print
makers. I'm currently reading Edward Weston again. 

Print exchanges are valuable, but I've not seen examples of
photography or printmaking in them that begin to rival Edward
Weston's. This means specifically that the data-oriented approach
still has a long way to go.