continuously moving projection rates that are not necessarily submultiples of the standard television field rate the scanner includes a rotating multifacet mirror such as a reflecting polygon that sweeps a succession of images of the moving film past the line scanner at a rate sufficient to cause the line scanner to scan one full frame in the time required for generating a standard television field each successive image deflected by the polygon is displaced from the preceding image by one film frame height whereby the transition from one image to the next as the successive images sweep across the line scanner proceeds from a location in one frame to a corresponding location in an adjacent frame frame rate conversion is thus achieved by causing some or all of the video fields to be comprised of portions of scans of adjacent frames of the film application_number US 6803279 A description certain features disclosed but not claimed in this application are the subject of copending u s patent application ser no 68 031 entitled optical configurations for a rotating polygon film scanner by d g howe filed on the same date as the present application the frame rate converting film scanner according to the present invention shown schematically in fig1 includes a light source 10 and a condensing lens 12 for illuminating a portion of motion picture film 14 in a film gate 16 light from the film gate passes through a beam splitter 18 and is reflected from reflecting polygon 20 the reflecting polygon has a plurality of facets 22a b c that are arranged about an axis of rotation 24 light reflected from the polygon facets is again.