ขาย NIKON AF-S DX 35 mm f/ 1.8 G ประกันศูนย์ 2 ปี ราคาที่ดีที่สุด

In the Box Nikon AF-S DX NIKKOR 35mm f/1.8G Lens 52mm Snap-On Lens Cap LF-1 Rear Lens Cap HB-46 Bayonet Lens Hood for AF-S DX NIKKOR 35mm f/1.8G CL-0913 Soft Lens Case Nikon AF-S DX 35/1.8GSpecificationThe AF-S Nikkor 35mm F1.8G DX is Nikons latest lens, announced in February for PMA 2009. Its introduction came as something of a surprise to many observers, not because its an updated 35mm lens with a built-in autofocus motor, but because the DX designation indicates that its designed for use on DX format bodies, and isnt fully compatible with Nikons growing FX format camera range. According to Nikon, this has allowed the company to design a lens that is smaller, lighter and cheaper than it would have been had it offered full coverage of the FX image circle. In effect, the lens is primarily targeted as an inexpensive, large aperture option for users of the entry-level (D40 / D40X /D60) series of DSLRs.The 35mm focal length is roughly equivalent to 50mm on an FX camera, and the lens therefore fits into the standard category, with an angle of view offering none of the perspective distortion associated with wideangle or telephoto lenses. The fast F1.8 maximum aperture admits more than four times as much light as the AF-S 18-55mm F3.5-5.6G VR DX kit lens, which is useful for shooting in low light while keeping shutter speeds reasonably high. The Silent Wave Motor allows autofocus on all of Nikons DSLR bodies, with the added bonus of allowing the user to tweak focus manually in AF mode if desired.The 35mm F1.8G features an optical design of 8 elements in 6 groups, including an aspherical element for the correction of aberrations usually associated with large aperture prime lenses. However unlike the typical 50mm standard prime for the full frame (FX) format, this lenss focal length is rather shorter than the flange distance from the lens mount to the imager. This necessitates the use of a so-called retrofocal design, which is more usually associated with wideangle lenses; unfortunately this often results in increased aberrations relative to traditional near-symmetric 50mm designs. So how does the 35mm F1.8 DX measure up?