[filmscanners] Re: 3 year wait

["Anthony Atkielski" <anthony@atkielski.com>]

Austin writes:

> Average "decent" film has a resolution of,
> say, around 125 lp/mm...which is 6350 somethings
> per inch.

Only at contrast ratios of 1000:1.  That's ten stops, and it hardly ever
occurs in real life.

At more realistic contrast ratios, resolution is usually no better than
60-80 lp/mm, or about 3000-4000 dpi.

Tech Pan, however, routinely exceeds 200 lp/mm.  Virtually no scanner can
exhaust Tech Pan.  But that's the weird exception to the rule.



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