Images of E 20mm F2.8
Images of E 20mm F2.8
Compact wide-angle prime lens

E 20mm F2.8 Wide-Angle Prime (SEL20F28)

Shooting stills or movies, this slim (20.4mm), lightweight pancake lens offers outstanding performance. Use it for interiors, nature, snapshots and more.

Coupled with α E-mount cameras from Sony, APS-C E-mount lenses deliver big camera performance.

Circular aperture for smooth bokeh
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

To optimise performance, aspherical lens elements maintain high contrast (even with the aperture wide open) and minimise distortion and flatness of the image plane.

Fast, agile focusing

A rear focusing mechanism means the lens barrel doesn’t move, enabling a more compact design, faster autofocus response, and reduced minimum focusing distances.

Illustration of lens configuration
Lens Configuration

Impressive optical performance for Sony cameras, precision engineered for versatility and reliability in a wide range of applications.
[1] Aspherical lens

Modulation Transfer Function of SEL20F28
MTF Chart

MTF (Modulation Transfer Function) describes how well a lens can reproduce fine details, measured as the degree of contrast achieved between finely spaced lines.
[1] Contrast (%)  [2] Distance from optical center of lens (mm)  [3] Max. aperture  [4] F8 aperture  [5] Spatial frequency  [6] 10 line pairs / mm  [7] 30 line pairs / mm  [8] Radial values  [9] Tangential values

Specifications & Features

  • Ultra-slim (20.4mm) and lightweight, with metal finish

  • Aspherical lens elements reduce distortion and aberration

  • Circular aperture for attractive defocusing

  • Smooth, quiet autofocus operation

  • APS-C camera equivalent focal length: 30mm

Minimum Focus Distance
0.2m (0.66ft)
Maximum Magnification ratio (x)
0.12x
Filter Diameter (mm)
49mm
Weight
69g (2.4oz.)

What's in the Box

Lens hood (ALC-SH113: cap type), Lens front cap, Lens rear cap

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