|
|
| |
| Förkortningen betyder |
| AS = Aspherical lens elements |
| |
|
|
| |
| Förklaring från Nikon |
| Nikon introduced the first photographic lens with aspherical lens elements in 1968. What sets them apart? Aspherical lenses virtually eliminate the problem of coma and other types of lens aberration — even when used at the widest aperture. They are particularly useful in correcting the distortion in wideangle lenses. In addition, use of aspherical lenses contributes to a lighter and smaller lens design. Nikon employs three types of aspherical lens elements. Precision-ground aspherical lens elements are the finest expression of lens-crafting art, demanding extremely rigorous production standards. Hybrid lenses are made of a special plastic molded onto optical glass. Molded glass aspherical lenses are manufactured by molding a unique type of optical glass using a special metal die technique. |
|
|
|
| Se objektiv för just din kamera |
| Nedan visas några modeller (se alla) |
| Canon EOS 30D |
| Canon EOS 20D |
| Nikon D1 |
| Nikon D40 |
|
|
| Två populära objektiv du inte får missa |
|
|
