Slides
- Slide mounts: Slides must be mounted in 2x2 inch cardboard, glass, metal or plastic mounts not thicker than 3/32 inch.
- Thumb Mark: A dot or other distinguishing mark must be placed in the lower left hand corner of the slide as it is held by hand and seen correctly by the holder. Slides will always be oriented in the competition projector according to this thumb mark.
- Name and Title: All slides entered into competition must have on the reverse side the maker’s name and photograph’s title.
