Nikon D7100 manual 372

AUsing the Built-in Flash

When using the built-in flash, be sure the subject is at a range of at least 0.6 m (2 ft) and remove lens hoods to prevent vignetting (shadows created where the end of the lens obscures the built-in flash).

Camera	Zoom position	Minimum distance without vignetting
D5000, D3100, D3000	18 mm	2.5 m/8 ft	2 in.
	24 mm	1.0 m/3 ft	3 in.
D5200, D5100, D3200	18 mm	3.0 m/9 ft 10 in.
	24 mm	1.0 m/3 ft	3 in.
D700, D7100, D7000, D300 series,	All	No vignetting at any focus distance
D200, D100, D80
D90, D70 series	18 mm	1.5 m/4 ft 11 in.
	24–105 mm	No vignetting at any focus distance
D50	18 mm	1.0 m/3 ft	3 in.
	24–105 mm	No vignetting at any focus distance
	18 mm	2.5 m/8 ft	2 in.
D60, D40 series	24 mm	1.0 m/3 ft	3 in.
	35–105 mm	No vignetting at any focus distance

Because the built-in flash units for the D100 and D70 can only cover the angle of view of a lens with a focal length of 20 mm or more; vignetting will occur at a focal length of 18 mm.

DLens Care

•Keep the CPU contacts clean.

•Use a blower to remove dust and lint from the lens surfaces. To remove smudges and fingerprints, apply a small amount of ethanol or lens cleaner to a soft, clean cotton cloth or lens-cleaning tissue and clean from the center outwards using a circular motion, taking care not to leave smears or touch the glass with your fingers.

•Never use organic solvents such as paint thinner or benzene to clean the lens.

•The lens hood or NC filters can be used to protect the front lens element.

•Attach the front and rear caps before placing the lens in its flexible pouch.

•When a lens hood is attached, do not pick up or hold the lens or camera using only the hood.

•If the lens will not be used for an extended period, store it in a cool, dry location to prevent mold and rust. Do not store in direct sunlight or with naphtha or camphor moth balls.

•Keep the lens dry. Rusting of the internal mechanism can cause irreparable damage.

•Leaving the lens in extremely hot locations could damage or warp parts made from reinforced plastic.

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