Nikon D7100 Body Manuale Utente

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The AF-S DX NIKKOR 18–105mm f/3.5–5.6G ED VR
The AF-S DX NIKKOR 18–105mm f/3.5–5.6G ED VR is for use exclusively with Nikon DX 
format digital cameras. Superior optical performance and image rendering are 
ensured by the use of aspherical lens elements and elements made using extra-low 
dispersion (ED) glass to correct chromatic aberration. A rounded aperture produces 
soft, esthetically-pleasing blurring of point light sources in out-of-focus areas of the 
image (bokeh).
❚❚Vibration Reduction (VR)
AF-S DX NIKKOR 18–105mm f/3.5–5.6G ED VR lenses support vibration reduction 
(VR), which reduces blur caused by camera shake even when the camera is panned, 
allowing shutter speeds to be slowed by approximately 3 EV (Nikon measurements; 
effects vary with the user and shooting conditions).
To use vibration reduction, slide the vibration reduction ON/OFF 
switch to ON. Vibration reduction is activated when the shutter-
release button is pressed halfway, reducing the effects of 
camera shake on the image in the viewfinder and simplifying 
the process of framing the subject and focusing in both 
autofocus and manual focus modes. When the camera is 
panned, vibration reduction applies only to motion that is not 
part of the pan (if the camera is panned horizontally, for 
example, vibration reduction will be applied only to vertical 
shake), making it much easier to pan the camera smoothly in a 
wide arc.
Vibration reduction can be turned off by sliding the vibration reduction ON/OFF 
switch to OFF. Turn vibration reduction off when the camera is securely mounted on 
a tripod, but leave it on if the tripod head is not secured or when using a monopod.
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Vibration Reduction
Do not turn the camera off or remove the lens while vibration reduction is in effect. If power 
to the lens is cut while vibration reduction is on, the lens may rattle when shaken. This is not 
a malfunction, and can be corrected by reattaching the lens and turning the camera on.
Vibration reduction is disabled while the built-in flash is charging. When vibration reduction 
is active, the image in the viewfinder may be blurred after the shutter is released. This does 
not indicate a malfunction.