OBSERVACIONES | Apochromatic color correction and an aspherical lens surface are combined for the first time in this lens of this type. Of its five individual elements, two are made of high-refraction glass, while two others feature anomalous partial dispersion. Its brilliance and quality of resolution are exemplary even at full aperture. Light falloff is very low. Its fast aperture for a 90mm lens lets you shoot at relatively short exposure times even in dim light, helping to minimize the effects of camera shake, as when photographing street scenes from a distance. |
CARACTERISTICAS | Angulo de vision:27°, 23°, 15° Diseño optico: 5 elementos/ 5 grupos, rango focal 1 m hasta infinito Ratio: 1:9 Diafragma:with clickstops,(including half values), manual diaphragm, apertura minima f/16 Bayonet:Leica M quick-change bayonet Filtro:Internal thread for screw-on filters size E55 Montura:Built-in, telescopic Dimensiones:78 mm, diametro 64 mm Peso:aprox. 500 gr |
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