Digital BW, The Print

Steve,

Just measured the 255 and 254 patches with and without the Highlight Point 
Shift box checked under Advanced B&W and the readings are (with i1 and 
MeasureTool):-

Box unchecked

255    Lab    94.4    -0.2    -3.7

254    Lab    94.0    -0.1    -3.6

Box checked

255    Lab    91.3    -0.0    -3.6
254    Lab    90.2    -0.0    -3.5

Bob Frost.


----- Original Message ----- 
From: "Bob Frost" <bob@...>

Just printed a Printer White Point Target from www.ZuberPhotographics.com
with and without the Highlight Point Shift box checked. Without it checked,
as you say, 255 is the same as the paper (Premium Glossy) and 254 can be
seen to be different. With it checked, the whole of the printable area
becomes glossier, and 255 is no different from that. The points 254 and
below are still distinguishable from 255, so the linearity of these lighter
points has been shifted.