will be noted that each negative frame 13a 13b 13c 13d has associated therewith a perforation 14a 14b 14c 14d respectively each of which are located a precise fixed distance from a respective frame and thus may serve as a locator for that frame as indicated previously in lieu of perforations notches may be provided along one edge of the strip 10 to identify each frame as is the known practice for size 135 film strips with reference now to fig2 an apparatus 20 is shown which comprises a portion of a photograph printer the apparatus includes a scanning gate 21 a printing gate 22 and a drive roller 23 the strip is unwound from a supply spool 18 and threaded through the apparatus so that each frame is serially conveyed from the scanning gate to the printing gate and is then taken up by a tendency driven take up spool 19 at the scanning gate suitable known means may be provided for permitting the viewing of each frame seriatim to obtain exposure information about the frame the viewing may be automatically accomplished for example by a scanning apparatus that takes a point by point scan of the frame and with the use of a computer converts the density and color characteristics of each point into appropriate signals for controlling the printing of the frame while one frame is being scanned or viewed by the scanning apparatus another frame may be printed at the printing gate using exposure information derived when the latter frame was previously located in the scanning gate the printing of the frame may be accomplished by projecting light through the frame onto a suitable photographic print material that is incrementally advanced through the apparatus in synchronism with the film strip 10 the exposure of the.