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Best Sony SAL-16F28 16mm f/2.8 Fisheye Lens for Sony Alpha Digital SLR Camera Cheap. and Sony SAL-16F28 16mm f/2.8 Fisheye Lens for Sony Alpha Digital SLR Camera Prices in USA.
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16mm F2.8 Fisheye Lens
Get 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.
Technology
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. 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 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.
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Features
- 16mm (35mm equivalent) f2.8 fisheye lens provides unique photographic perspective
- Corner-to-corner sharpness
- Crisp focus from about 8 inches to infinity
- 4 built-in filters: Normal, 056, B12, A12
- Quick filter selection with a simple rotating dial
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Minolta A-mount system - Wikipedia The Minolta A-mount camera system was a line of photographic equipment from Minolta. The system used a lens mount called A-mount, with a flange focal distance 44.50 mm. Sony SAL-24F20Z 24mm f/2.0 A-mount Wide Angle Lens Product description. The SAL-24F20Z Zoom Lens offers superior zooming performance and boasts a compact, lightweight design. The fast and silent auto focus, minimal spherical distortion and color aberration and Carl Zeiss T coated optics make this one a great choice for beautiful close-ups. Sony SAL-16F28 16mm f/2.8 Fisheye Lens for Sony Alpha ... Product description. The Sony SAL-16F28 16mm f/2.8 Fisheye Lens is a superb fisheye lens with a look all its own. This unique lens provides a fascinating perspective on landscapes, cities, crowds and special events.
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