|
|
| |
| Förkortningen betyder |
| SD = Super Low Dispersion |
| |
|
|
| |
| Förklaring från Tokina |
When standard optical glass is used in telephoto lenses, a phenomenon called chromatic aberration can occur. Chromatic aberration is the inherent tendency for glass to disperse (separate) a ray of light into the colors of the rainbow. The rainbow effect created by a glass prism is the most dramatic demonstration of chromatic aberration. In lenses, it is much less pronounced, but still creates slightly out of focus colors, akin to an “optical noise” that has a negative impact on the quality of the picture. To eliminate chromatic aberration, Tokina employs expensive, special glass material having super- low dispersion (SD) properties.
Lenses in the Tokina line-up with the SD mark incorporate these Super-Low Dispersion glass elements, minimizing the secondary spectrum or optical noise caused by chromatic aberration. |
| |
|
|
| |
| Se exempel på berörda produkter |
|
|
| |
| Se länkar |
|
|
|
|
|
| Se objektiv för just din kamera |
| Nedan visas några modeller (se alla) |
| Nikon D5 |
| Nikon D2X |
| Nikon D850 |
| Canon EOS 1300D |
|
|
| Två populära objektiv du inte får missa |
|
|
|
|
|
Sites in our network
|
|
|
| |
Snabbsök |
|
| |
|
|
| |
Andra tittar på det här |
|
| |
Kärlek |
|
| |
Nyinkommet på Objektivguiden |
|
|
