Focus Lock; Depth Of Field; Recommended Focusing Screens - Nikon AF-S Nikkor 600mm f/4D IF-ED II Instruction Manual

To limit the range of autofocus (Fig. 2)
With AF operation, set the focusing limit switch according to the pre-determined
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distance range for the subject(s) to reduce focusing time.
Focusing
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distance
Usable cameras: F6, F5, F4-Series, F100, F90X/N90s, F90-Series/N90,
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Focus lock

With autofocus operation, focus is locked either by pressing the focus lock button on
the lens or locking the autofocus on cameras so equipped.
F Usable cameras: F6, F5, F4-Series, F100, F90X/N90s, F90-Series/N90,
•The position of the focus lock button on this lens can be modified. For information,
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please contact an authorized Nikon dealer or service center.

Depth of field

If your camera has a depth of field preview (stop-down) button or lever, depth of field
can be observed while looking through the camera viewfinder.
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Minimum aperture lock (Fig. 3)
For programmed auto or shutter-priority auto exposure shooting, use the minimum
aperture lock lever to lock the lens aperture at f/22.
1 Set the lens to its minimum aperture (f/22) by aligning it with the aperture index.
2 Slide the lock lever toward the aperture ring, so the two orange dots are aligned.
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To release the lock, slide the lever in the opposite direction.

Recommended focusing screens

Various interchangeable focusing screens are available for certain Nikon SLR
cameras to suit any picture-taking situation. The ones recommended for use with this
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lens are:
14
Focusing limit zones provided
FULL
Infinity (∞) to close
(5.6m) (18.4 ft.)
F80-Series/N80-Series, F70-Series/N70, F65-Series/
N65-Series, Pronea 600i/6i, Pronea S, D2-Series,
D1-Series, D100 and D70.
F80-Series/N80-Series, F70-Series/N70, F65-Series/
N65-Series, Pronea 600i/6i, Pronea S, D2-Series,
D1-Series, D100 and D70.
12 - 5.6m
12m (39.4 ft.) to close
(5.6m) (18.4 ft.)
∞ - 10m
Infinity (∞) to 10m
(32.8 ft.)