A SENSITOMETRIC COMPARISON OF FUJI SUPER HR-G AND KODAK T-MAT-G PANORAMIC FILMS

Film contrast, relative speed, and resolution of Fuji Super HR-G panor amic film were determined according to specifications of the American National Standards institute and compared with those of Kodak T-mat G panoramic film. The films were simultaneously exposed by Kodak Lanex r egular intensifying screens with time-scale sensitometry. Optical dens ity was read with a digital densitometer, and characteristic curves we re plotted and analyzed by polynomial and linear regression. The avera ge gradients of the linear regression curves between 0.25 and 2.00 opt ical density units above base plus fog were taken as contrast (HR-G: 1 .831, T-mat G: 1.712). Relative speed, when exposed with Lanex regular intensifying screens and calculated at 1.00 optical density unit abov e base plus fog, was 412 for HR-G. A speed of 400 was chosen for T-mat C to match Kodak consumer information. Resolution for both films was similar. These findings suggest that Fuji Super HR-G panoramic film de velops similar contrast, speed, and resolution to Kodak T-mat G panora mic film.