Abstract: The invention relates to a compound for holding photographic slides or negatives for reproduction thereof or for the production of special effects. The compound may be used with most reproduction or special effects cameras now available and is provided with movable table portions which are subject to micrometer adjustment for accurate positioning of the slide relative to the camera. In addition the table portions are rotatable relative to a base portion which is actually mounted adjacent the camera light source. Of particular interest is the device utilized to hold a slide in the compound. It includes a platen base which may be removably received in the uppermost compound table portion. The platen base is provided with at least three registration pins for mating with corresponding ones of the usual sprocket holes or perforations in a slide. Each pin is rectangular in cross-section with the major dimension of each being equal to one of the dimensions of length or width of a slide perforation.