Sony 16-50mm f/2.8 DT Alpha A DSLR Mount Zoom Lens
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Sony 16-50mm f/2.8 DT Alpha A DSLR Mount Zoom Lens

Price: $798.00

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Description

About Sony 16-50mm

Product Information provided by the Manufacturer

DT 16-50mm F2.8 SSM Zoom Lens

This versatile 16-50mm telephoto zoom has an innovative optical design and maintains a large F2.8 maximum aperture with consistently outstanding contrast and image quality throughout the zoom range. The large maximum aperture and circular aperture design deliver smooth, natural defocusing effects, while built-in SSM (Super Sonic wave Motor) drive ensures responsive, quiet autofocus performance.

Media

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.

SSM (Super Sonic wave Motor)

SSM is a piezoelectric motor that contributes to smooth and silent AF operation. The motor produces high torque at slow rotation, and provides immediate start and stop responses. It is also extremely quiet, which helps keep autofocusing silent. Lenses that feature SSM also include a position-sensitive detector to directly detect the amount of lens rotation, a factor that improves AF precision overall.

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.

Sony Store customer reviews

Overall:

 
 

(116 reviews)

Frame up the perfect shot while composing on the go for less editing later. Get amazing wide-angle to mid-range telephoto shots with beautifully defined colors that make reliving the moment magical. 

• High quality standard lens with 3x zoom range 
• All-purpose lens for portraits, travel, and landscapes 
• Bright F2.8 maximum aperture 
• High performance optics with ED glass lens elements 
• Super Sonic wave Motor for fast, quiet autofocus 

Enjoy fast response and strong depth-of-field thanks to the wide f/2.8 aperture. ED Glass ensures brilliant shots with a wide array of color or try out Circular Aperture for pleasing defocused effects. 

Say goodbye to blur - Pair the lens with a Sony camera with SteadyShot INSIDE and you'll enjoy smooth, blur-free results when shooting handheld, even zoomed in. 

Smooth defocusing - Instead of a standard polygon-shaped lens aperture, this lens features a 7-blade circular aperture for more natural, rounded defocusing, or bokeh. 

Refined optical performance - Aspherical lens elements minimize distortion while ED (Extra-low Dispersion) glass elements provide superior contrast, resolution, and color fidelity. 

Focus quickly and quietly - Internal focusing reduces minimum focusing distances and allows fast autofocus response while a built-in SSM (Super Sonic wave Motor) ensures silent operation

Specification

Sony 16-50mm Specifications

Lens Mount Type
Sony A-mount
Aperture (Max.)
F2.8
Aperture (Min.)
f/22
Filter Diameter
72mm
Lens Groups-Elements
13 groups, 16 elements
Minimum Focus Distance
1' (30cm)
Distance Encoder
Yes
Angle of View
83 - 32 Degree
Aperture Blade
7 blades (Circular aperture)
Focal Length (35mm equivalent)
APS: 24-75mm (35mm Equivalent: 16-50mm)
Lens Weight
20.4 oz (577g)
Maximum Magnification
0.2x
Dimensions (Approx.)
3-1/4 x 3-1/2" (81 x 88mm

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