Bob Washburne wrote:
> But any software enhansement package must deal with the raw data and the
> originals will no longer be around to rescan. So it is imperative that
> I extract as much data as possible now while I still can. Ideally, I
> would like to scan photos down to the emulsion resolution which would
> represent all the information possible. For 19th century photography I
> believe 1200 dpi comes very close to this.
This is about the resolution of most modern emulsions (unless you are using
super slow specialist films). I doubt the 19th centruy emulsions have
anything like that resolution. 19th century lenses are incapable of
resolving this well, anyway. Such a high resolution would only make sense
when scanning documents, or maybe paintings.
The resolution of most film images are much poorer than most people
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