Imprinting data at low temperatures

Liquid crystal is used for imprinting data to the film. Because liquid crystal tends to become slower at low temperatures, note the following when imprinting data under 0°C or 32°F:

In-frame and between-frame imprint

Release the shutter more than 2 sec. after power is turned on (or exposure meter is on) and before the exposure meter turns off. If the shutter is released before 2 sec., data may not be imprinted correctly.

Wait for more than 2 sec. before taking next shot. Otherwise, the data for a given frame may be imprinted twice at the same location (or mistakenly printed to a second frame).

0-frame imprint

Load film (advance the film to the first frame) more than 2 sec. after power is turned on (or exposure meter is on) and before the exposure meter turns off. If the film is advanced to the first frame before 2 sec., data may not be imprinted correctly.

Film advance speed in data imprint shooting

When imprinted data other than date, date and time or user index number is selected, film advance speed tends to slow down even at normal temperatures if CL (continuous low-speed) or CH (continuous high-speed) film advance mode is selected.

To prevent the slowdown of the film advance speed, select either date, date and time or user index number only, or cancel data imprint.

Film advance speed depends on film sensitivity, temperature and imprint density (selected in Custom Setting “d8: Imprint density, x 103); it slows down when low-sensitivity film is loaded, at low temperatures and darker imprint density is selected.

Even when the date, date and time or user index number only is selected for imprinting data, film advance speed slows down if the film sensitivity is slower than ISO 160 or imprint density is set to “+2” in CH (continuous high-speed) shooting.

Processing film with between-frame imprint

Film may be cut in film processing, including your imprint data (or even the photo image itself). To avoid this, make sure to have the entire film roll processed in one piece.

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Nikon 1799 instruction manual Imprinting data at low temperatures, Film advance speed in data imprint shooting, 137