Nikon AF-S DX Micro- NIKKOR 40mm f-2.8G: M/A (Autofocus with Manual Override) ■ Aperture ■ Depth of Field

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M/A (Autofocus with Manual Override)

To focus using autofocus with manual override (M/A):

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Slide the lens focus-mode switch to M/A.

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Focus.

If desired, autofocus can be over-ridden by rotating the

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lens focus ring while the shutter-release button is pressed

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halfway (or, if the camera is equipped with an AF-ON

button, while the AF-ON button is pressed).

To refocus

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using autofocus, press the shutter-release button halfway

or press the AF-ON button again.

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The Focus Limit Switch

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This switch determines the focus distance limits for autofocus.

FULL: Select this option for subjects that may be

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closer than 0.2 m (0.7 ft).

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∞–0.2 m: If your subject will always be at

distance of at least 0.2 m (0.7 ft), select this

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option for faster focusing.

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■ Aperture

Aperture is adjusted using camera controls.

If the camera is in

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exposure mode A or M, aperture will automatically be

adjusted by up to 1.2 stops to maintain the same effective

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f-number at different focus distances.

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■ Depth of Field

If the camera offers depth-of-field preview (stop down), depth

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of field can also be previewed in the viewfinder.

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