Two-thirds Key Number Like the one-third key number, but +80 perforations following the main key number.

Tails

Frame-Reference Markers

A Dash, Key and Plus are printed at regular intervals to help locate frame lines, especially for scenes shot in low light.

Dash: Frame reference mark for 5- and 10-perf formats.

Key: Frame reference mark for 8-perf format.

+Plus: Frame reference mark for 15-perf format.

(Every third dash is a plus)

To Use: Locate one frame line and nearest reference marker for the given film format. Count the number of perforations between the frame line and the marker. Use this perf offset to identify the location of frame lines throughout the scene.

Note: Frame-reference markers are not printed when they interfere with other edgeprint information.

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Kodak 65MM manual Tails, Frame-Reference Markers