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[filmscanners] RE: Suggestions for scanning 4x5 transparencies
Austin Franklin wrote:
>
>> Since those are laid down on a 1440x2880 (or whatever) grid,
>
> Check the print modes in either the service manual or a detailed spec
> sheet. For the 3000 they are 180x180, 360x360, 720x720 and
> 1440x720...BUT the 1440x720 is using MicroWeave, and has the EXACT
> number of "available dots" as the 720x720 mode.
That's why I said "or whatever". The dither algorithm works at whatever dot
pitch you select, not at some fixed 720dpi (for desktop printers).
You had expressed a suspicion that when the Epson document referred to
resampling at 720dpi, instead of 720ppi, they were referring to something
related to the dithering. I was merely correcting that, saying that they did
indeed mean 720ppi, as evidenced by the behavior of their driver.
--
Ciao, Paul D. DeRocco
Paul mailto:pderocco@ix.netcom.com
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