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April 27, 2011, Nikon has formally announced the AF-S NIKKOR 50mm f/1.8G standard lens, a fast, normal 50mm fixed focal length (prime) lens with a maximum aperture of f/1.8 that is compatible with Nikon FX-format digital-SLR cameras.
The AF-S NIKKOR 50mm f/1.8G offers the pleasing blur characteristics and three-dimensional rendering capabilities possible only with a fixed focal length (prime) lens at a very reasonable price. A new optical design that enables f/1.8 maximum aperture brightness and utilizes an aspherical lens element has been adopted for this lens, which achieves superior rendering performance for excellent image quality even with shooting in dimly lit indoor settings. The built-in Silent
Wave Motor (SWM) ensures quiet autofocus operation. What's more, the SWM means that autofocus shooting is also possible when the lens is used with entry-level Nikon DX-format digital-SLR cameras such as the D5100 and D3100, which are not equipped with an autofocus drive motor.
Key Features of AF-S NIKKOR 50mm f/1.8G Lens:
- A bright and fast, normal 50mm fixed focal length lens with a maximum aperture of f/1.8
- A new optical design utilizing an aspherical lens element enables superior rendering performance
- Equipped with a Silent Wave Motor (SWM) for extremely quiet autofocusing
- Equipped with two focus modes, M/A (autofocus with manual override) and M (manual)
- A size and weight that makes it very portable
Specifications of AF-S NIKKOR 50mm f/1.8G Lens:
| Focal length | 50 mm |
|---|---|
| Maximum aperture | f/1.8 |
| Minimum aperture | f/16 |
| Lens construction | 7 elements in 6 groups(including 1 spherical lens element) |
| Angle of view | 47°(31°30' with Nikon DX-format D-SLR cameras) |
| Minimum focus distance | 0.45 m |
| Maximum reproduction ratio | 0.15x |
| No. of diaphragm blades | 7(rounded) |
| Filter attachment size | 58 mm |
| Dimensions | Approximately 72 mm diameter x 52.5 mm (distance from camera lens mount flange) |
| Weight | Approximately 185 g |
| Supplied accessories | 58mm snap-on Front Lens Cap LC-58, Rear Lens Cap LF-4, Bayonet Hood HB-47, Flexible Lens Pouch CL-1013 |