Long Time Exposure

This function is useful for shooting nighttime scenes such as stars, which require an extended exposure of more than 30 sec. The shutter remains open as long as the shutter release button is kept fully depressed. (Use of a tripod is recommended.)

1 While pressing the exposure mode button MODE, rotate the Main-Command Dial to select ¢ (Manual exposure).

• Use the LCD illuminator (x 81) to view the LCD panel in the dark.

2 Rotate the Main-Command Dial to select buLb and rotate the Sub-Command Dial to set the aperture.

• If buLb is selected in Manual exposure mode and the exposure mode is changed to Shutter- Priority Auto, buLb blinks and the shutter locks.

• Continuous exposure of approx. 5 hours is possible with 3V lithium batteries. Note that when shooting at low temperatures, continuous exposure time is reduced.

3 Compose picture, focus and shoot.

The shutter remains open as long as the shutter release button is kept fully depressed.

Use of the optional remote cord MC-20 or MC-30 (x 171) reduces camera shake.

Power source

Use of a fresh set of batteries is recommended to avoid power shortage during long time exposure. Also, optional Multi Power Battery Pack MB-40 (x 166) enables prolonged long time exposure.

CSM b5: In Manual exposure mode, the slowest shutter speed can be changed from 30 sec. to 30 min. (x 98).

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Nikon 1799 instruction manual Long Time Exposure, Power source