printing with ink 16 or 8 bits?

Discussion in 'Photoshop' started by topsecret, Jan 10, 2005.

  1. topsecret

    topsecret Guest

    hello
    when printing i have this two options,
    i have the image at 16 bits and it prints too,
    but were is more qualtiy 16 or 8 bits?
     
    topsecret, Jan 10, 2005
    #1
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  2. You won't see any difference, because the printer can't even reproduce
    the full 8 bits color space.
     
    Johan W. Elzenga, Jan 10, 2005
    #2
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  3. topsecret

    John Doe Guest

    Your 16-bit image is converted to 8-bit by the printer driver. The same
    thing would happen if you printed a CMYK images, the printer driver would
    first convert it to RGB or sRGB and then it would convert it to its own
    flavor of CMYK.

    John
     
    John Doe, Jan 10, 2005
    #3
  4. topsecret

    Mike Russell Guest

    Personally I work in 8 bits almost exclusively. But many people choose to
    work in 16 bits, and then throw away some of that hard earned accuracy by
    printing using printer color management, which truncates to 8 bits before
    printing. This results in an 8 bit profile conversion, and significant round
    off error in the eighth bit. Due to this roundoff, only somewhat more than
    7 bits of information actually gets send to the printer.

    Can they see the difference? Probably not, and for some this may shed doubt
    on the utility of working in 16 bits in the first place.

    For those who do care, this last "bit" of error may be avoided by manually
    converting to the printer's profile, followed by conversion to 8 bits,
    before printing.
     
    Mike Russell, Jan 10, 2005
    #4
  5. topsecret

    John Doe Guest

    People generally work in 16-bit for the exposure and color correction
    advantages. Beyond that the rest of photo editing doesn't much benefit.

    John
     
    John Doe, Jan 11, 2005
    #5
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