Platemaking Calibration 4.0: FIRST Recommends A New Way of Looking at Plate Imaging and Measurement

摘要

1. A radiometer (or light meter) measures bulb output.rn2. Calibrate in terms of energy, not time.rn3. All UV lamps do lose some intensity over time, but it is a gradual loss.rnWhat's changed in the world of plates and platemak-ing since the release of FIRST 4.0? In order to answer this question properly it was necessary to revisit the Prepress Sections of the Premier, Second, and Third Editions of FIRST (Flexographic Image Reproduction Specifications and Tolerances), where the Printing Plate sub-sections are located.