17-55mm F2.8 G AFS DX ED

17-55mm F2.8 G AFS DX ED

The AF-S DX Zoom-NIKKOR 17-55mm f/2.8G IF-ED Lens from is a wide-angle to short telephoto zoom lens specified for use with DX format DSLR cameras. Its 35mm focal length equivalence is 25.5-82.5mm, enabling a versatile set of perspectives that incorporate most focal lengths used in day-to-day and travel photography. At the wide-angle end it provides an inclusive view useful for landscape vistas, interiors, street shots and group shots of friends and family. The zoom advances to cover standard focal length and short telephoto perspectives, ideal for portraiture and to mildly magnify your subjects. Its constant maximum aperture of f/2.8 provides consistency throughout the zoom range and is effective in low light and allows shallow depth of field control. 
The lens' optical design includes three Extra-low Dispersion (ED) glass elements to control chromatic aberration and three aspherical elements to reduce coma and aspherical aberrations. Nikon's Super Integrated Lens Coating improves light transmission, minimizing flare and ghosting. A circular 9-blade diaphragm creates pleasing, natural looking out-of-focus highlights.
An internal focus system lends itself to a compact form factor, provides precise focusing and does not extend or rotate the front elements while focusing. A Silent Wave Motor offers fast and near-silent autofocus action and manual focus override allows for precise manual control even in AF mode. This G-type Nikkor lens is designed with no aperture rings and offers easy operation. 
Specification:
Lens Type:                                              Standard Zoom
Focal length - wide (mm):               17
Focal length - tele (mm):                 55
Max aperture – wide:                        2.8
Max aperture – tele:                          2.8
Minimum aperture:                           22
Minimum focus distance (m):       0.4
Sensor Format:                                    DX
Lens mount:                                         Nikon F
Lens elements:                                   14
Lens groups:                                         10
Aperture blades:                                9
Filter thread (mm):                           77
 
Size:                     85.5 x 110.5mm
Weight (g):       755