OM SYSTEM ED 20mm f/1.4 PRO

OM SYSTEM ED 20mm f/1.4 PRO

OM SYSTEM ED 20mm f/1.4 PRO

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Take on a new angle of adventure with the OM SYSTEM M.Zuiko Digital ED 20mm F1.4 PRO Lens, a pocket-sized lens capturing stunning edge-to-edge sharpness with soft feathered bokeh that always delivers superior image quality no matter where you’re going. This bright F1.4 lens remains both compact and lightweight, while also featuring a fully-sealed splashproof, freezeproof and dustproof design, lending itself to a variety of wanderer pursuits.

Compact, lightweight PRO Micro Four Thirds lens

With outstanding resolution unique to M.Zuiko PRO lenses, this lens features an 11-element, 10-group lens configuration consisting of Super ED lens, ED lenses, Super HR lenses, and aspherical lenses arranged effectively for sharp imaging from the centre to the farthest corners of the frame. The M.Zuiko Digital ED 20mm F1.4 PRO Lens makes the most out of the performance of your camera, including the high image quality, acquired when shooting using High Res Shot mode. ZERO coating is used along with optimal suppression of internal reflections within the lens barrel to reduce ghosts and flaring.

Using the know-how gained in the development of the M.Zuiko PRO F1.2 series, which delivers ultimate defocusing effects, we have implemented feathered bokeh that slowly introduces blur moving from the in-focus area to the out-of-focus region. Using an aberration measurement instrument to measure bokeh at the aberration level and deliver optimal control over spherical aberration allows the lens to deliver superior resolution and beautiful bokeh effects.

Comfortable and stress-free shooting in a variety of circumstances

Highly reliable dustproof, splashproof and freezeproof construction (-10°C): Sealed throughout, this lens offers IPX1 equivalent splashproof performance. It also features a dustproof and freezeproof construction to -10°C, and pairing it with a dustproof, splashproof, and freezeproof camera body makes it possible to continue shooting in punishing environments, such as rain and snow, with peace of mind. Fluorine coating on the front-most lens allows for water droplets to roll off and for dirt to be cleaned off easily.

High-speed, high-precision AF: Superb optical design and lens processing technologies are used to make a lighter focusing lens, which enables faster, more accurate AF, allowing users to enjoy stress-free, high-speed, high-precision AF shooting.


  • MPN - V335050BW000
  • GTIN - 4545350053758
Focal Length20mm
35mm Equivalent Focal Length 40mm
Lens Construction11 elements in 10 groups
(1 Super ED lens, 3 ED lenses, 2 Super HR lenses, 2 Aspherical lenses)
Splashproof Type / DustproofIEC Standard publication 60529 IPX1
(applies when the lens is used with Olympus splashproof Body) / Dustproof construction
Focusing SystemHigh-speed Imager AF (MSC)
Angle of View57 degrees
Closest Focusing Distance0.25m
Maximum Image Magnification0.11x
35mm Equivalent Max. Image Magnification
Minimum Field Size 157.8×118.6mm
Number of Blades9 (circular aperture diaphragm)
Maximum ApertureF1.4
Minimum ApertureF16
Filter SizeDiameter 58 mm
Weight247g (without Lens Cap, Lens Rear Cap and Lens Hood)
Compatible with Teleconverternot compatible
  • Focal Length: 20mm | Maximum Image Magnification: 0.11x
  • 35mm Equivalent Focal Length: 40mm
  • Compact, High performance, High resolution and Feathered Bokeh
  • Precise, high-speed AF thanks to a lightweight focusing lens unit
  • Angle of View 57 degrees
  • Max Aperture: f1.4, Min Aperture: f16 | Number of Blades: 9 (circular aperture)
  • 11 Elements in 10 Group Lens Configuration
  • Closest focusing distance: 0.25m
  • Highly reliable dustproof, splashproof performance (IPX1), Fluorine coating