Sony DT 18-200mm f/3.5-6.3 Aspherical ED High Magnification Zoom Lens for Sony Alpha Digital SLR Camera

From the Manufacturer DT 18-200mm F3.5-6.3 Wide Range Zoom LensThis lightweight lens will take you from a wide scene-spanning 18mm to far-reaching 200mm telephoto that will let you zoom in on distant subjects. This is an excellent choice for photographers who want to cover as many situations as possible without havng to change lenses. In addition to being an outstanding one-lens solution, it features a refined optical design that ensures excellent sharpenss and contrast.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.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.

• DT lens design for optimum performance
• Excellent wide-angle to long telephoto shots
• Fast internal focusing with no change in lens length
• 3 aspherical lens elements for wide-angle accuracy
• 35mm equivalent: 27mm to 300mm