Jerry, Looking at various viewing light standards a while ago I remember the level of light on the print ranging between 500 and 2000 Lux. My viewing lights put 1000 Lux on the print and my display brightness is 120 cd/m2. I've found that trying to match prints to displays is very sensitive business... viewing light & display brightness, white points, surrounds, ambient light levels, textures, gloss, viewing light spectrum, angles, paper optical brighteners... they all play significant factors. Questions... What rendering intent are you using when printing and what system are you using for soft proofing? Thanks. - Brad -----Original Message----- From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx] On Behalf Of Jerry Chan Sent: Tuesday, December 02, 2014 3:26 PM To: argyllcms@xxxxxxxxxxxxx Subject: [argyllcms] Recommendations to tweak ArgyllCMS profile to open up shadows? Seasons greetings fellow ArgyllCMS users Could someone provide recommendations on how to tweak the ArgyllCMS profiling process to open up shadows for printed output? Using Windows 7, ArgyllCMS 1.6.3 and printing to a Canon IPF6350 with genuine OEM inks on various matte paper (Epson, Canon) I have calibrated / profiled my dual monitor setup so they are a very close match to each other. The three-quarter-tones to shadow areas printed on matte paper are maybe 1 - 2 f-stops too dark compared to the screens. Printing the same image on photo glossy paper is much better (roughly 1/2 f-stop too dark in that region). Results from ArgyllCMS / ColorMunki and ArgyllCMS / Pulse DTP20 printer profiles produce very similar results. Thanks Jerry