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Sony 20mm f1.8 G FE Lens (SEL20F18G)


  • Lens is suitable for: Sony APS-C & Full Frame E-Mount
  • Fitting: Sony E-Mount (APS-C & Full Frame)
  • Wide PRIME
  • Filter Size: 67mm

Product code: 20181 (4548736099777)

(69 reviews)

Sony 20mm f1.8 G FE Lens (SEL20F18G)


No used versions available

Product Details

Key Specifications:

  • E-Mount Lens/Full-Frame Format
  • APS-C Equiv: 30mm
  • Aperture Range: f/1.8 to f/22
  • Two XD (eXtreme Dynamic) Linear Motors
  • Dust and moisture resistant
  • Nano AR Coating
  • Fluorine Front Element Coating

A compact high-resolution 20mm F1.8 prime

Sony’s latest optical technology achieves impressive corner-to-corner resolution from maximum F1.8 aperture in a large-aperture wide-angle prime lens. It is also remarkably compact. Matched with an E-mount body this lens makes up a mobile system with outstanding AF performance, control, and reliability for a wide variety of shooting needs.

Superb corner-to-corner resolution from F1.8

Two AA (advanced aspherical) elements in an innovative optical design minimise aberration for outstanding corner-to-corner resolution right from the lens’s widest F1.8 aperture.

Smooth, natural-looking bokeh

In addition to precise control of spherical aberration that has a significant influence on bokeh quality, the FE 20mm F1.8 G has a 9-blade circular aperture that contributes to smooth, creamy bokeh and natural-looking highlights that are hallmarks of the G Lens series.

Compact and lightweight for enhanced mobility and handling

An advanced optical design that includes two AA elements is supported by a refined mechanical system in a G Lens that weighs just 373 grams (13.2 oz.). Small size and lightweight enhance mobility when used with compact E-mount bodies, and make up a well-balanced system that is ideal for use on gimbals or accessory grips. The FE 20mm F1.8 G is a versatile lens for a wide variety of still and movie shooting situations.

Realistically rendered point sources

Two AA (advanced aspherical) elements and three ED (Extra-low Dispersion) glass elements are employed to minimise sagittal flare so that point light sources are reproduced accurately, without colour smearing.

Superb AF speed, precision, and tracking

Two XD (eXtreme Dynamic) Linear Motors easily keep up with Sony’s high-speed camera bodies, taking full advantage of their AF speed, precision, and tracking potential. New control algorithms make it possible to drive the lens’s large focus group smoothly and without delays for responsive, silent, low-vibration autofocus.

Dust and moisture resistant

A dust and moisture resistant design provides the reliability needed for outdoor use in challenging conditions.

Excellent close-up performance, even for selfies

In addition to the fact that 20mm is a great focal length for selfies, this lens has a minimum focusing distance of just 0.19 meter (0.63 ft) when used in AF mode, and an even closer 0.18 meter (0.59 ft) minimum focusing distance when focused manually. It is an excellent choice for gimbal/grip mounting, whether shooting selfies or other subjects.

Nano AR Coating for crisp contrast

Sony’s original Nano AR Coating creates a precise, regular nanostructure on lens surfaces that does not interfere with light transmission while suppressing reflections that can cause flare and ghosting. Internal reflections are reduced to an absolute minimum, achieving outstanding clarity and contrast

Customisable focus hold button

A conveniently placed focus hold button not only offers easy focus hold control but can be assigned to a variety of other functions from a menu accessed via the camera body.

Fluorine front element coating

The front lens element features a fluorine coating that repels water, oil, and other contaminants while making it easier to wipe off any contaminants or fingerprints that do become attached to the lens surface.

Easy manual/autofocus switching

A focus mode switch that allows instant switching between auto and manual focus modes can be a great advantage when shooting subjects or situations that require fine manual focus adjustment.

Switchable aperture ring click stops

In addition to providing the fast response required for professional application, the aperture ring includes a switch that turns its click stops on or off: ON for tactile feedback when shooting stills, or OFF for seamless, silent control when shooting movies.

30mm equivalent on APS-C bodies

This lens also balances well on smaller APS-C format bodies, providing a very useful wide-angle focal length of 30mm (full-frame format equivalent). 30mm is great for taking snapshots around town, shooting the scenery while hiking or mountain climbing, and much more. The SEL20F18G is highly recommended for APS-C as well as full-frame users.

Natural, linear manual focus response

Linear Response MF ensures that the focus ring responds directly and linearly to subtle control when focusing manually. Focus ring rotation translates directly to a corresponding change in focus, so control feels immediate and precise.

Sony’s movie technology supports advanced moviemaking

Moviemaking advantages include fast, precise AF and tracking provided by the lens’s XD Linear Motors, an ultra-wide 20mm angle of view on full-frame bodies (30mm on APS-C bodies or with Super 35 angle of view settings), a bright F1.8 maximum aperture, compact and lightweight design, excellent close-up performance, and more. In addition to the lens’s small size and lightweight, its internal focus design makes it convenient for use on compact gimbals or grips for vlogging and other applications.

Product Reviews

Sharpness, Handling, Ghosting, Glare, Incredible image quality
TechRadar UK

The Sony FE 20mm f/1.8 G is a superb addition to the Sony FE lineup that will appeal to a wide range of photographers, from landscape fans to wedding snappers. While it's expensive, this wide-angle prime justifies its price tag with its fast, quiet autofocus, compact design and impressive sharpness...


The Sony FE 20mm f/1.8 G lens is a very well-made weather-sealed lens, that gives impressive levels of sharpness, and a rather good close focusing distance. The lens is also to be commended for its relatively compact size and weight, being a good combination for the Sony Alpha A7 series.

In fact, the lens has just one flaw, something you could anticipate and expect. After all it would be foolish to think an instrument with such dimensions and parameters would be able to correct vignetting in a perfect way.

Amateur Photographer

Is this the fast wide-angle prime lens Sony users have been eagerly awaiting? Michael Topham paired it with the A7R IV to find out

PC Magazine

The Sony FE 20mm F1.8 G is a sharp, bright lens with a wide angle of view. It's a top-end performer and a fine addition to your camera kit.

Camera Labs

The Sony FE 20mm f1.8 G is an ultra-wide prime lens designed for Alpha mirrorless cameras and corrected for full-frame sensors. It delivers an ultra wide field-of-view that captures comfortably more than a 24mm, making it ideal for expansive landscapes, tight interiors, wide astro photography, as...

Camera Decision

Sony FE 20mm F1.8 G is an Auto Focus (AF) Ultra-Wideangle Prime lens with 35mm FF max sensor coverage and it is designed to be used with Sony E mount cameras. Lenses in Sony E Mount with Same Focal and Aperture Range Model Coverage Weight Focusing Street Price Samyang 20mm F1.8 ED AS UMC Compare...

The Digital Picture

Aside from a small number of nit-picks (vignetting at narrow apertures, imperfect full-frame corners at f/1.8, and some wobble in the focus ring), this lens offers very little to complain about. The 20mm focal length is fun and useful.


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I have had this lens for a couple of weeks and have fallen in love with it Very high quality - small and light - amazing sharpness,corner to corner - I also really like this focal length - no real distortion I can see . Great features - love the clickable aperture,and manual focus switch.

Wex Photo Video

I toyed with the G-master 24mm. But truth be told I just couldn't see the benefit. This lens has matching image quality, wider, lower price tag and is just fantastic for landscape or even environmental portrait shots. I know Sony lenses are expensive, but you do get some amazing products these days.

Castle Cameras

I find that this lens fully lives up to all the well-deserved hype that it has received. At wider apertures especially, coverage is sharp, contrasty and crisp from edge to edge and only at the smallest apertures is there any sign of slight edge softening due to diffraction, and then only at pixel...


Needed a wide angle lens that works in my tight work space even with the aps-c crop. This lens was perfect for the job. It's also light enough for most gimbals. More than that, it produced perfect photos too. Excellent sharpness, colour rendition, and almost no distortion.

Clifton Cameras

The Sony 20mm f1.8 G is a versatile lens: great for landscape, astrophotography and architecture. It's incredibly sharp, compact and relatively light.


Bought this a little more than a month ago and so far it is great for my use. If I wanted to zoom in crop APS-C I just use a shortcut. Bokeh nice. Can go very close. Color render is nice Quiet Fast One lens stuck on the camera except when the 200-600 is needed.


Have had this lens only a short time but I am very impressed with the clarity and sharpness of this lens. I have not really used wide angled lens in the past as I tend to shoot wildlife but had nothing to shoot wide vistas hence the purchase.


This surprisingly light and well-balanced lens feels great on my A7R4A. Picture quality is as good as I have seen with razor-sharp acuity and excellent contrast. Definitely one of the best lenses I have ever used and it is now a staple in my camera bag.


I am delighted with this lens. It is very light, takes super sharp photos even wide open, and has a very fast focusing with my a7III. I love the aperture ring - so easy to use, with a helpful de-clicking switch for smooth and silent video use.

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