printing with ink 16 or 8 bits?

T
Posted By
topsecret
Jan 10, 2005
Views
275
Replies
4
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Closed
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?
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bit ink print

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N
nomail
Jan 10, 2005
topsecret wrote:

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?

You won’t see any difference, because the printer can’t even reproduce the full 8 bits color space.

—
Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.nl/
JD
John Doe
Jan 10, 2005
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

"topsecret" wrote in message
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?

MR
Mike Russell
Jan 10, 2005
topsecret wrote:
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?

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
www.curvemeister.com
www.geigy.2y.net
JD
John Doe
Jan 11, 2005
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

"Mike Russell" wrote in message
topsecret wrote:
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?

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
www.curvemeister.com
www.geigy.2y.net

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