A Polarizing Debate

Use of polarization filters in print color measurement Photographers use polarization filters to cut out glare. On color measurement devices, the use of these filters minimizes differences due to gloss. Differences in appearance from specular reflection can come from paper coating and from ink finish. Also drying of wet ink changes the appearance. Whether a surface is glossy or matte can impact color measurement. There has been debate about the use of polarization filters and…

7 Considerations in Aperture Size for Print Measurement

Print color and density measurement can be done with different aperture sizes on a spectrophotometer. Here are 7 things to consider when pondering aperture size for color measurement of prints: What size are the color patches on the color control bar? Typically small aperture is used where smaller color patches need to be measured. This is often the case for presses with many printing units and where extra patches are being used for each ink…