Harman Gloss FB Al / Hahnemuhle Baryta FB - QTR Curve Details

This is a QuadToneRip curve for Harman Gloss FB Al. In early 2010 Harman are partnering
with Hahnemuhle to market this same paper under the Hahnemuhle brand ( presumed to be
Hahnemuhle Baryta FB) although the paper will still be made by Harman and be identical
in all but name.

These curves made on an Epson 7880 using standard Ultrachrome K3VM inks, printing at
1440 dpi mode.

Legend has it that 78x0 and 98x0 series printers are linearized off the production line,
but 48x0 are not, but can be brought in line with the Epson "Colorbase" software. This
may also apply to the 38x0 series of printer. These profiles ought to work equally well
on any of those machines that have been set to factory base.

I have created these curves using QTR 2.6.2 (patched) on OS-X 10.6.2 (Snow Leopard)
with Adobe Photoshop CS3 and ProfileMaker Pro 5.10.0 with Eye One Pro spectro. I have
included my measurement files so you can use them in your own blendings. The curves have
been linearized with the 51 step wedge, measured three times and averaged.

There are three curves present, Neutral, Cool and Warm.

Warm -	Ultrachrome K3 inks (L, LK and LLK) have a naturally warm look, left untoned they
	give a warm print, as with this curve.

Neutral - I have tried to match this curve with the Epson driver "Advanced Black and White"
	mode. The default setting for this mode is "Neutral" balance and "Darker" tone,
	which is what I used to match. The QTR curve is *very* close in neutrality, there
	is a barely imperceptable warmth to compared with the ABW version, but otherwise
	it's very neutral. The QTR curve is a little darker in the deep shadows than the
	ABW effort, but the QTR curve has a greater DMAX than the ABW mode so this is
	not that surprising.

Cool -	This is similar to the Neutral curve only with a slightly more aggressive toning,
	it's still very subtle and quite neutral.

I hope you enjoy using these curves, if you've any questions or feedback, drop me a mail!

Darren Joy (qtr@joy.org.uk)
