16mm F2.8 Fisheye Lens

16mm F2.8 Fisheye Lens

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. 16mm F2.8 Fisheye Lens


Circular Aperture

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.

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.
ED (Extra-low Dispersion) glass
Aspherical lens elements

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.
Distance encoder

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Lens Type Wide Angle & Wide Angle Zoom
Lens Mount Type Sony A-mount
Aperture (Min.) f/22
Focal Length (35mm equivalent) APS: 24mm (35mm Equivalent: 16mm)
Filter Diameter Integrated
Lens Groups-Elements 8 groups, 11 elements
Minimum Focus Distance 8.4” (20cm)
Aperture Blade 7 blades
Aspheric Elements no aspheric
Depth-of-Field Yes
Distance Scale Yes
Lens Weight 14 oz (400g)
Magnification x 0.15
Weights and Measurements
Dimensions (Approx.) 2 15/16 x 2 5/8” (75 x 66.5mm)
Weight (Approx.) 14 oz (400g)

What's in the Box

  • Front and rear lens cap