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Message

Re: Media check mystery

2006-03-20 by John Vitollo

--- In colorvision_group@yahoogroups.com, Jack Winberg <jack.winberg@...> wrote:
> Much to my surprise, VERY different media choices produced very 
> little variation in results, or at least quite subtle ones.  My 
> speculation is that perhaps that is because of the internal 
> calibration inherent in the 2400 machine.
> Jack Winberg

I too have found media settings are fairly close to each other but I wanted to explore a 
little more. Epson's black usually comes in hard and fast, less so with the newest printers 
but I wanted to find the media setting that has smoothest black from 100% to 90%.

So I recently tested the "best" media setting for William Turner paper on my Epson 4800.

I printed a ten patch gray ramp from 100% to 90% with five media settings.

My Excel results are below for William Turner on an Epson 4800:

http://homepage.mac.com/johnvito/WilliamTurnerMediaSettings.png

From 100% to 90% only two media settings show linear density loss albeit stepped at
times. While the other three actually have spiked increases in density – called reversals – 
on some patches. For
example Epson's Enhanced has the same density at the following patches: 100%, 99% and 
97%. As
you can see the 98% patch has a lower density. Another reversal at 94%.

My choice is the UltraSmooth media setting, as it has the most linear path.

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