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DT 16-50 mm F2.8 SSM

Sony SAL1650

Features

  • 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

Quick Specs

  • Type: Lens
  • Mount: Sony Alpha
  • Focal Length: Zoom
  • Width: 3.25"
  • Depth: 3.5"
  • Energy Star Rated: No

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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.

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.

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.

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.

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.

Features

  • 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
Footnotes
* "35 mm equivalent focal length (APS-C)" and "Angle of View (APS-C)" are with interchangeable lens digital camera incorporating APS-C type image sensors.
Lens Specifications
35 mm equivalent focal length (APS-C) 24-75mm
Angle of View (APS-C) 83°-32°
Aperture Blades 7
Circular Aperture Yes
Filter Diameter (mm) 72mm
Focal Length (mm) 16-50mm
Format APS-C
Size & Weight
Dimensions (Diameter x Length) 3-1/4 x 3-1/2" (81 x 88 mm)
Weight 20-3/8 oz (577 g)

Quick Specs


  • Appearance

  • Type: Lens
  • Mount: Sony Alpha
  • Focal Length: Zoom

  • Dimensions

  • Width: 3.25"
  • Depth: 3.5"

  • Features

  • Energy Star Rated: No

Limited Warranty

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Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.