Nikon 2181 user manual Setting the aperture, Variable maximum apertures, Focusing Fig. a

■Setting the aperture

Use the camera to adjust the aperture setting.

■Variable maximum apertures

Zooming the lens from 10mm to 24mm decreases the maximum aperture by 2/3 stop.

However, there is no need to adjust the aperture setting to achieve correct exposures because the camera automatically compensates for this variable.

■Focusing (Fig. A)

Set your camera’s focus mode selector according to the
chart below:			En
Camera focus	Lens’ focus mode switch
mode	M/A	M
AF (A/S/C)	Autofocus with	Manual focus (Focus
	manual override	assist is available.)
MF	Manual focus (Focus assist is available.)

For more information on camera focus modes, refer to your camera’s User’s Manual.

Autofocus with manual override (M/A mode)

1Set the lens focus mode switch dto M/A.

2Autofocus is enabled, but autofocus operation can be overridden by rotating the separate focus ring 7while pressing the shutter-release button halfway, or by pressing the AF-ON button on the camera body of cameras so equipped.

3Press the shutter-release button halfway or the AF- ON button once again to cancel manual focus and resume autofocus.

Getting good results with autofocus

Refer to “Notes on using wide- or super wide-angle AF NIKKOR lenses” (P. 17).

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