Abstract: Apparatus for handling photographic slides is disclosed. According to one aspect of the invention, the apparatus is adapted to support two rotary slide trays disposed one above the other. Means is provided for indexing the lower tray and a coupling member extends between the two trays so that the upper tray is indexed in synchronism with the lower tray. A chute is provided for conveying slides from the upper tray to the lower tray and is shaped to turn the slides laterally so that they enter the second tray in reverse orientation compared with their former orientation in the first tray. Slide loading and unloading devices for use with the apparatus are also disclosed. According to another aspect of the invention, the apparatus is adapted to load stacked slides into a rotary slide tray.