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Re: [PPLetterpress] Memory Requirements for Half-tones

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  • Scott Rubel
    Stan: Memory is something I will have to check because I don t remember. Next time I m in the office I will try to find out. I ve had it for maybe three or
    Message 1 of 7 , Mar 28, 2008
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      Stan:

      Memory is something I will have to check because I don't remember. Next
      time I'm in the office I will try to find out.

      I've had it for maybe three or four years and it was hella expensive
      back then, but it certainly is a workhorse. The cartridges last so long
      they start to make you nervous.

      --Scott

      okintertype wrote:
      > Thanks for the help. I don't follow all of that, but it is a good
      > start.
      >
      > On the 5100 that will do a whole page of half-tones with no problem,
      > does it by chance have added memory? Suppliers offer 64 meg upgrades.
      >
      > Stan
      >
      >
      > --- In PPLetterpress@yahoogroups.com, Peter Fraterdeus <peterf@...>
      > wrote:
      >
      >> Stan
      >>
      >> It will depend entirely on the dimensions of the image.
      >>
      >> For a 133 line screen, you want at least 133x3 dpi (linear), so
      >>
      > 400dpi
      >
      >> (since this will give a 3x3 or 9 value dot)
      >> Preferably, you'd go 5x5 or about 800.
      >>
      >> 800 dpi is 640000 pixel/sq.in. If this is reduced to a bitmap (1-
      >>
      > bit
      >
      >> per pixel) that's maybe 80K per sq.in, so you'd be fine with 16MB.
      >>
      >> If it's a RGB (24-bit/pixel) image, then, probably not...
      >>
      >> This is off the cuff calculation, someone with better
      >>
      > concentration
      >
      >> may have a more accurate figure. (Having just returned from the
      >>
      > Weds
      >
      >> night Irish music session at the local Pub, I must beg off on
      >> reliability ;-)
      >>
      >> Cheers
      >> pf
      >>
      >> Peter Fraterdeus
      >> http://ExquisiteLetterpress.com
      >> http://dubuquebookarts.com
      >>


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