The image resolution of 35mm cinema film in theatrical presentation

The increasing use of electronic digital projection technology for the large-screen digital imaging (LSDI) of motion pictures and digital and HD video, has prompted interest in comparing the resolution achieved by LSDI displays with traditional 35mm motion picture film optical projected displays. In order to serve as a reference point for such comparisons, tests were made to determine the end-to-end resolution performance of 35mm cinema film from the 35mm negative to the final screen display. It is expected that the test results will be useful in determining for each LSDI application whether a resolution higher, lower, or equal to 35mm film optical projection is required. The paper summarizes the 35mm test procedures employed and the objective and subjective results obtained.