The AF-S DX Nikkor 18-140mm f/3.5-5.6G ED VR is a superzoom lens manufactured by Nikon, introduced in August 2013 for use on Nikon DX format digital SLR cameras. The lens includes vibration reduction to counter camera shake. To minimize chromatic aberrations the lens uses an extra-low dispersion glass element. The lens uses internal focusing and a silent wave motor to focus. Two switches are provided on the lens. One of them can be used to switch vibration reduction on/off and the other is used to switch between auto-focus and manual focus. Like all lenses in the DX format, the 18-140mm casts a smaller image circle than lenses for full-frame 35mm cameras and is therefore only compatible with cameras having APS-C-sized sensors (or vignetting will result).