> Date: Sat, 1 Feb 2014 12:40:49 +0200 > Subject: [argyllcms] Re: Epson 1400 A3+ Chart > From: ivantsyba@xxxxxxxxx > To: argyllcms@xxxxxxxxxxxxx > > Then calculate needed scale factor for printtarg: A=RW/8 You are assuming the I1pro target is always used! Personally, I think it is better to use the staggered CM target as it is much more robust for row width errors (especially when low -T ratio used in Chartread). Uncertainty in row widths is another reason I recommend using a double-sided ruler. Not only does it completely constrain the Munki, but incorrect row widths become instantly obvious when the ruler is laid down.