Abstract: Method and apparatus for generating photographic copies from a CRT display of digital pixel data. The digital pixel data is received from a host digitizing device as a series of lines to be displayed. The series of lines comprises a complete frame of image data. The digital data is used to time modulate a constant intensity CRT beam to accurately control the exposure of a photographic film. Control over the exposure is effected by scanning each line of the image frame a plurality of times. The number of times each pixel data is displayed with a constant intensity determines the total exposure produced by each pixel on the photographic film. By scanning individual lines of a rasterized picture a plurality of times, accurate control over the exposure of the photographic film may be controlled using the constant beam intensity.