*1 Exposure will be incorrect when the lens is shifted and/or tilted. *2 P includes AUTO (General-Purpose Program) and Vari-Program System. *3 When the lens power or the camera is turned off (including

using the auto meter off function) while stopping down the En lens aperture, the diaphragm blades fully open to the maximum

aperture. This is not a malfunction.

*4 Stopping down the lens aperture activates AE-L (AE lock).

*5 Handle the lens with care while shifting and/or tilting. Failure to do so may cause the lens to scratch the camera body.

*6 See “Mounting lens” (P. 23)

*7 Diaphragm blades open and close after each press of the shutter button, and exposure will be incorrect for continuous shooting.

*8 When the lens power or the camera is turned off (including using the auto meter off function) while stopping down the lens aperture, the lens aperture remains at the stopped down setting. When the camera is turned on again or the camera shutter release button is lightly pressed, the diaphragm blades open once and then close. This is not a malfunction.

*9 When the camera is turned off using the auto meter off function while stopping down the lens aperture, lightly press the shutter release button to display the selected aperture value in the camera’s LCD or view finder before shooting. Failure to do this may lead to incorrect exposure when the shutter release button is fully depressed.

Aperture stop-down button (one-touch preset aperture operation)

The lens aperture can be stopped down from maximum aperture to a selected aperture by pressing the aperture stop-down button. Pressing the button again fully opens the aperture. Whether the aperture is stopped down or not, check the camera viewfinder, or check the diaphragm from the front of the lens.

Even at maximum aperture after canceling the aperture stop- down, the preset aperture value is displayed on the camera body.

When using the D3 or D300 camera, the aperture is stopped down to a selected aperture automatically by pressing the shutter release button, even when the aperture is fully open (maximum aperture) before shooting. When the lens power or the camera is turned off (including using auto meter off function) after stopping down the lens aperture by pressing the aperture stopdown button, the aperture stop-down is cancelled and the diaphragm blades fully open to the maximum aperture.

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Nikon PC-E, 2168 user manual