Sony Alpha SEL-20F28 20mm f/2.8 Lens

Wide-angle lens for Sony NEX-series cameras

Item #: 158EL20F28

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One of the best things a lens can be is portable. Weight and bulk can slow you down in a lot of ways, and while you can learn to get around those limitations (and should), it's always nice when you can say a quality lens weighs less than 3 ounces and is less than an inch long. Without further ado, we present the Sony SEL-20F28 pancake-style lens for the Sony NEX series of mirrorless interchangeable-lens cameras.

You're no doubt already aware your NEX camera is a great example of highly compact digital imaging technology. With this lens mounted on the front, it becomes small enough to slip into a coat pocket, while still featuring a very useful 30mm equivalent focal-length and remarkable light-gathering ability thanks to its f/2.8 aperture. If you're willing to walk around a little bit to achieve your ideal framing, this lens will reward you with tack-sharp, light-suffused images that resonate down the years. The SEL-20F28's candid snapshots, landscapes, and interior shots will all exude life, while its portability will keep you involved in the action around you.

Product Highlights:

  • 20mm f/2.8 low-profile fixed focal-length lens
  • effective focal length: 30mm with Sony NEX-series cameras and camcorders
  • magnification ratio: x0.12
  • minimum focus distance: 7.8"
  • minimum aperture: f/16
  • lens construction: 6 groups, 6 elements
  • three aspherical lens elements for excellent sharpness with minimal chromatic aberration
  • filter/attachment size: 49mm
  • lens is 2-1/2" in diameter, 13/16" long
  • weight: 2.4 oz.
  • warranty: 1 year
  • Our 60-day money-back guarantee
Supplied Accessories:
  • front and rear lens caps

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Hands-on research

What's in the box?

Download owner's manual

  • E20mm F2.8 lens (SEL20F28)
  • 49mm Front lens cap (installed)
  • Rear lens cap (installed)
  • Operating Instructions
  • Precautions Before Using
  • Warranty Sheet

Features and Specs

General
Brand Compatibility Sony
Image Stabilization No
Focal Length 20mm
Maximum Aperture F2.8
Weight 2.4 ounces
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research

Features

Optics: The Sony SEL20F28 (E 20mm F2.8) compact wide-angle lens is compatible with the Sony α NEX-series interchangeable lens cameras and camcorders. The lens has a 35mm equivalent focal length of 30mm, and is recommended for a wide variety of photos, from wide, expansive landscapes to interiors to casual snapshots.

Circular Aperture: The lens features a 7-blade circular aperture that results in a pleasing defocused circular effect on the background of your image when the aperture is set to wide open. The same type of stepping motor used for the focus drive is also used for the aperture activation.

Specifications:

Lens E 20mm F2.8
35mm Equivalent 30mm
Mount Sony E-mount
Angle of View 70°
Lens Construction 6 elements in 6 groups (including 3 aspherical elements)
7-blade Circular aperture
Minimum Focus 7.92"
Filter Diameter 49mm
Aperture F2.8 maximum
F16 minimum
Weight 2.4 ounces
Dimensions Diameter=2.46"
Length=1.407" (1.87" w/caps)

Our Product Research Team

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