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[filmscanners] Re: Film resolution - was: Re: 3 year wait

Austin writes:

> Whether you believe 1000:1 is practical or
> not, isn't relevant, as film CAN record that.

Only if you have 1000:1 contrast ratios in the scene you are photographing,
which is extraordinarily unlikely.  If the contrast is lower, the fact that
film can record this at such high contrast is entirely irrelevant.

> Also, keep in mind that to scan RELIABLY you
> need to scan at around 2x the resolution you
> are trying to scan...so to reliably scan 4k
> per inch, you would need to scan at a resolution
> of 8k per inch.

Line _pairs_ per millimetre already account for this.  So to scan 120 lp/mm,
you need 120 pixels per millimetre.

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