Sony SAL18135 18-135mm f/3.5-5.6 Zoom Lens

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  • Sony SAL18135 18-135mm f/3.5-5.6 Zoom Lens
  • Sony SAL18135 18-135mm f/3.5-5.6 Zoom Lens
  • Sony SAL18135 - Zoom lens - 18 mm - 135 mm - f/3.5-5.6 DT SAM - Sony A-type - for Handycam NEX-VG900, a SLT-A55, SLT-A57, SLT-A58, SLT-A65, SLT-A77, a3000
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Product Description A-mount DT 18-135mm F3.5-5.6 SAM From the Manufacturer DT 18-135mm F3.5-5.6 SAM Zoom Lens This lightweight lens offers the dual advantages of a very useful 18-135mm zoom range and easy portability. Featuring an outstanding optical design that includes aspheric lenses and ED glass for stellar resolution, plus an in-lens motor that maximizes autofocus performance for high-speed continuous still shooting as well as movies. Manual focus is smooth and easy as well. Technology ED (Extra-low Dispersion) glass As 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 elements Aspherical 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 encoder The 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. SAM (Smooth Autofocus Motor) Rather than using the focus drive motor in the camera body, SAM lenses feature an autofocus motor built into to the lens itself that directly drives the focusing element group. Since the built-in motor directly rotates the focus mechanism, operation is significantly smoother and quieter than conventional coupled autofocus drive systems. Additional Features Internal focusing Only the middle groups of the optical system move to achieve focus, so the overall length of the lens does not change. Other important benefits include fast autofocusing and a short minimum focusing distance. Also, the filter thread at the front of the lens does not rotate, which is convenient if you?re using a polarizing filter. 2012 Sony Electronics, Inc. All rights reserved. Sony, the Sony logo, Alpha, ??? and Super SteadyShot are trademarks of Sony. All other trademarks are trademarks of their respective owners.


  • New-generation midrange-magnification zoom lens with 18-135mm focal length
  • Maximum magnification ratio (x): 0.25x.Lightest midrange-magnification zoom lens
  • Silent, high-speed AF drive via SAM
  • Minimum Focus Distance:1.48 ft (0.45 m)
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