Style:Single
Product Description
10-18 mm F4 super wide-angle zoom lens. Super ED glass and optical steadyshot image stabilisation. Minimum 10 mm focal length,ultra wide-angle zoom lens. Angle of view (APS-C): 109 degree-76 degree
APS-C, E-mount. Optical steady shot image stabilisation within the lens ensures smooth, blur-free photos and videos when shooting handheld, steady shot image stabilisation. Remove dust and debris from the camera body. Use a brush to sweep dust and debris from the entire camera. Use a large brush for the outside of the camera and a small brush for delicate parts. Do not press the brush hard against the camera; sweep gently. Remove dust and debris from delicate parts using a blower. Take the front lens cap off, and remove the dust on the lens surface using the blower. If particularly dirty, wet a soft cloth or lens tissue with lens cleaner solution, and wipe in a circular motion from the center of the lens. Do not apply lens cleaner solution directly to the lens.Do not use any organic solvent such as thinner or benzine to clean the lens. Replace the front lens cap to prevent dust from attaching to the lens. Press the lens release button, and detach the lens. Be careful do not touch the sensor's surface. Use the blower while holding the camera facing slightly downward so that dust and debris easily fall off the sensor's surface. Reattach the lens. Take the lens off and on in a dust-free location. Dust and debris may easily enter the camera and lens in a dusty location. For an A-mount: When you attach the lens, confirm that the mirror has been completely pushed down. After you are finished cleaning, check that dust has been removed. Set the shooting mode to Aperture Priority (A), and the aperture value to F11. Take a picture of a white wall, white paper, or the sky. Make sure that no dust shows on the image.
Set Contains:
Lens
10-18mm f/4 Wide-Angle Zoom Lens
This super wide-angle zoom lens is perfect for taking photos of sweeping landscapes and producing striking images with emphasized perspective. Features incluse a constant maximum aperture of F4 and built-in Optical SteadyShot (OSS) image stabilization.
Technology
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Circular Aperture
When 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.
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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.
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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.
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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.
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.
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Lens-based optical image stabilization
Gyro sensors built into the lens detect even the slightest movement, and the stabilization lens is precisely shifted to counteract any image blur that might occur. The use of precision, quiet linear motors and technology inherited from high-end Sony professional camcorders results in exceptionally quiet, effective image stabilization that contributes to high-quality movies as well as stills.
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2012 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony is not responsible for typographical and photographic errors. Features and specifications are subject to change without notice.
