Frank Gualtieri

PITTSBURGH—Attendees here at the recent fifth annual Tech Alert conference, sponsored by the Graphic Arts Technical Foundation (GATF), witnessed the first detailed study comparing CTP-exposed thermal plates. GATF designed a special digital test image for this test. The image contained vignettes and gray backgrounds to show anomalies such as banding, streaks and inconsistent imaging. There was no real difference among any plates in dot imaging consistency. The Kodak DITP, Fuji LH-P and Fuji LH-N plates had the broadest highlight to shadow dot range of 0.5 percent to 98 percent on the printed samples. The difference among the remaining plates was not appreciable. These same