Originally Posted by
Bruce Watson
Could just be a perception problem. It's well known that small areas of a color look different than large areas of the same color. People find that out all the time when they paint rooms in houses.
For this reason I was taught to make at least one full size proof print. Because the perceptions of the colors, their relationships to each other, saturation, and contrast all are influenced by size.
This would explain your blacks getting darker and your yellows becoming more intense. But it may not explain a color shift like your turquoise sky that came out magenta.
Just to be clear, everything was the same except print size? Small and large print came out of the same roll of paper? Printed on the same day?
One other thing -- did you dry the prints? Inkjet prints are susceptible to changes as they dry (out gas). I started getting much more reliable results when I started drying prints with a hand held hair dryer. Low heat, high fan. The hand supporting the back of the print can feel the change from cool to warm indicating you've driven off most of the water / glycols.
Drying prints visually (and measurably) changes Dmax and contrast on most papers in my experience.
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