PARADOX » 日志 » Nikon AF-S Nikkor 50mm f/1.4G lens
Nikon AF-S Nikkor 50mm f/1.4G lens
Zeon 发表于 2008-09-22 12:16:55

Good, good, good.
AF-S NIKKOR 50mm f/1.4G
The AF-S NIKKOR 50mm f/1.4G lens is a fast, fixed focal-length lens with normal picture angle when used with Nikon’s FX-format D-SLR cameras. Its newly developed optical system delivers high performance, as it efficiently corrects sagittal coma flare and chromatic aberration.
The SWM ring type offers smooth and quiet AF operation. Although all lens groups shift during focusing, the front element and filter mount does not rotate and the barrel length does not change, ideal for close-up photography or when using SB-R200 Wireless Remote Speedlight units.
The AF-S NIKKOR 50mm f/1.4G has two focus modes, M/A (manual-priority autofocus) and M (manual focus). With its rounded nine-blade diaphragm, out-of-focus elements appear more natural. When mounted on a DX-format SLR, the picture angle is equivalent to a focal length of about 75mm in 35mm format.
AF-S NIKKOR 50mm f/1.4G lens specifications
| Maximum format size | 35mm full frame |
|---|---|
| Focal length | 50mm |
| 35mm equivalent focal length (APS-C) |
75mm |
| Diagonal Angle of view (FF) | 46º |
| Diagonal Angle of view (APS-C) | 31º30' |
| Maximum aperture | F1.4 |
| Minimum aperture | F16 |
| Lens Construction |
8 elements / 7 groups |
| Number of diaphragm blades | 9 (rounded) |
| Minimum focus | 0.45m |
| Maximum magnification | 0.15x |
| AF motor type | • Ring-type SWM • Full-time Manual Focus |
| Focus method | Unit |
| Image stabilization | • None |
| Filter thread | • 58 mm • Does not rotate on focus |
| Supplied accessories | • Front and rear caps • HB-47 Bayonet Hood • CL-1013 Lens Pouch |
| Weight | 290g (10.2 oz) |
| Dimensions | 73.5mm diameter x 54.2mm length (2.9 x 2.1 in) |
| Lens Mount | Nikon F only |
http://www.dpreview.com/news/0809/08092201nikkor_50mm_1_4glens.asp
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