Nikon 4920, 2163 Focusing, zooming, and depth of field p.104, Setting the aperture

3. Focusing, zooming, and depth of field (p.104)

First turn the zoom ring 5 until the desired composition is framed in the viewfinder before focusing. 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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4. Setting the aperture

Set the aperture on the camera body.

5.Taking flash pictures with cameras having built-in flash

Vignetting occurs when using these cameras because the light emitted from the flash may be obstructed by the lens barrel.

6. 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 lens are:

	Screen	A B C	E	EC-B	F	G1 G2 G3 G4	J K L	M P U
	Camera			EC-E
	F6	◎ ◎ ― ◎ ― ― ― ― ― ― ◎ ― ◎ ―
F5+DP-30		◎ ◎	◎	◎	―	◎	◎ ― ◎	―
F5+DA-30		◎ ◎	◎	◎	―		◎ ― ◎	―
F4+DP-20		― ◎	◎	―		○	◎ ◎ ―	◎
F4+DA-20		― ◎	◎	―		○	◎ ◎ ―	◎
:	Excellent focusing
:	Acceptable focusing
	Slight vignetting or moiré patterns appear in the viewfinder, but not on the film.
—:	Not available.

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