Sony SAL-16F28 0630in f28 lente ojo de pez para Sony Alpha cámara réflex digital

Descripción del producto La lente de ojo de pez F2.8 de 0.630 in. Póngase creativo con su fotografía usando la lente de ojo de pez F2.8 de 0.630 in. Esta lente ofrece imágenes expansivas que cubren un ángulo de visión extremadamente amplio con perspectiva curvileneal. Además de interpretaciones llamativas de la realidad, ofrece una profundidad de campo extendida para que puedas capturar enormes vistas en las que todo desde los 7.9 in hasta el infinito es nítido, incluso a la máxima apertura. Tienda 16mm F2.8 Fisheye LensGet creative with your photography using the 16mm F2.8 Fisheye lens. This lens delivers expansive images that cover an extremely wide angle of view with curvilenear perspective. In addition to eye-catching interpretations of reality, it offers extended depth of field so that you can capture huge vistas in which everything from 20cm to infinity is sharp, even at maximum aperture.TechnologyCircular ApertureWhen changing your aperture to defocus the background, the light sources appear blurred. This ‘bokeh’ effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. α lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result.ED (Extra-low Dispersion) glassAs focal lengths get longer, lenses built with conventional optical glass have difficulties with chromatic aberration, and as a result images suffer from lower contrast, lower color quality, and lower resolution. ED glass dramatically reduces chromatic aberration at telephoto ranges, and provides superior contrast across the entire image, even at large aperture settings. Super ED glass provides enhanced compensation for chromatic aberration.Aspherical lens elementsAspherical lens design dramatically reduces spherical aberration while also reducing lens size and weight. Spherical aberration is a slight misalignment of the light rays projected on the image plane. This is caused by differences in refraction at different points on conventional spherical lenses which degrade image quality in large-aperture lenses. Specially shaped “aspherical” elements near the diaphragm restore alignment of light rays at the image plane, maintaining high sharpness and contrast even at maximum aperture and can also be used at other points in the optical path to reduce distortion. Well-designed aspherical elements can reduce the total number of elements required in the lens, thus reducing overall size and weight. Advanced Aspherical (AA) elements are an evolved variant, featuring an extremely high thickness ratio between the center and periphery. AA elements are exceedingly difficult to produce, relying on the most advanced molding technology to consistently and precisely achieve the required shape and surface accuracy, resulting in significantly improved image accuracy and quality.Distance encoderThe distance encoder plays an integral part in ADI flash metering, which delivers high precision flash metering that is unaffected by the reflectance of subjects or backgrounds. The distance encoder is a lens component that directly detects the position of the focusing mechanism, and sends a signal to the CPU in order to measure distance to the subject. During flash photography, this data is very useful in calculating how much flash output is appropriate to the scene.2008 Sony Electronics, Inc.All rights reserved. Sony, the Sony logo, Alpha, “α” and Super SteadyShot are trademarks of Sony. All other trademarks are trademarks of their respective owners.

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