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| Förkortningen betyder |
| IF = Internal Focusing |
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| Förklaring från Nikon |
| Imagine being able to focus a lens without it changing in size. Nikon´s IF technology enables just that. All internal optical movement is limited to the interior of the nonextending lens barrel. This allows for a more compact, lightweight construction as well as a closer focusing distance. In addition, a smaller and lighter focusing lens group is employed to ensure faster focusing. The IF system is featured in most NIKKOR telephoto and selected NIKKOR zoom lenses. |
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