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| ASP = Aspherical Lens |
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| Förklaring från Sigma |
The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size.
This lens provides high optical performance while maintaining a compactsize. For example, the 12-24 mm f/4.5-5.6 EX DG ASPHERICAL lens widensthe range of wide-angle lenses, and it provides distortion-free images withimage reproduction performance equivalent to that of a single-focal lengthlens. Aspherical lenses allow the production of high-quality images fromcompact, lightweight telephoto zoom lenses. |
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