Digital BW, The Print

Austin writes:

> Depth of field is not limited by the resolution
> of the media, that's not part of the equation.

I didn't say otherwise.  It is limited by the resolving power of the eye.

> It is limited by a somewhat arbitrary calculation
> based on human visual acuity and some arbitrary
> viewing distance.

I know.  Why do you consider things correct when you write them, but
incorrect when I write them?

> You probably believe Nyquist has no role in all
> this ...

You probably should not speculate on what I do or don't believe.  I know why
you are doing it, and it doesn't work with me, so why bother?

> But again, I think using some arbitrary dimension
> for your claim is simply silly ...

You didn't find it silly a few paragraphs ago when you described using
exactly the same thing to calculate DOF.  Hmm.