Sony FE 20mm F1.8 G Full Frame Ultrawide Prime Lens Arrives

After a long period, Sony has finally taken a step to introduce a full-frame ultra-wide prime lens wider than 35mm focal length for full-frame mirrorless cameras, the “Sony FE 20mm F1.8 G”. On APS-C cameras, its 35mm equivalent focal length would be 30mm. The new E-mount Sony FE 20mm F1.8 G lens features advanced aspherical elements, XD linear motors (for fast and accurate autofocus), low minimum focus distance, multiple coatings, and so much more that contributes to sharp image quality & focus, wonderful bokeh, and outstanding resolution.

Glass Elements in Sony FE 20mm f/1.8 G lens

Sony FE 20mm F1.8 G lens incorporates two AA (advanced aspherical) elements as well as three ED (Extra-low Dispersion) glass elements. The aspherical elements keep the spherical aberration issues at a minimum. Whereas the ED glass elements protect the lens from chromatic aberrations and color fringing. Overall, the new FE 20mm F1.8 G hosts 14 lens elements in 12 groups.

XD (eXtreme Dynamic) Linear Motor

With the help of two XD (eXtreme Dynamic) Linear Motors, Sony FE 20mm f/1.8 G is able to perform fast autofocus operations. Despite having a large number of lens elements and groups, the motor is capable enough to drive the entire system to achieve focus in a smooth manner.


The bright aperture of f/1.8 allows the FE 20mm F1.8 G to capture more light and also helps to produce a wonderful shallow depth of field. In low light situations, the f/1.8 wide aperture will help tremendously to achieve perfect in-focus shots without any noise. And the 9 circular aperture blades contribute to an amazing bokeh effect.

Sony FE 20mm F1.8 G Minimum Focus Distance

Sony FE 20mm F1.8 G features an outstanding minimum focus distance of just 0.63 ft (0.19m) in AF mode. But in manual mode, the minimum focusing distance goes down even further at a mere 0.59 ft (.018m).


Compared to the 24mm, the new Sony FE 20mm f/1.8 G lens is slightly smaller but supports the same 67mm filter diameter. On the outside, there is a focus hold button that is configurable via camera menu settings. In addition, you will also find a focus mode switch and an aperture ring. FE 20mm F1.8 G features a weather-sealed design which makes it resistant to moisture and dust. However, the company says that it does not guarantee 100% weather sealing protection.

Lens Coating

To avoid unwanted effects such as flaring and ghosting, Sony FE 20mm f/1.8 G comes with the company’s proprietary Nano AR Coating. Moreover, the front element of the lens also uses a fluorine coating in order to repel water and grime.

Price and Availability

Check out the current price and availability for the new Sony FE 20mm f/1.8 G full frame ultra-wide prime lens.

Sony FE 20mm F1.8 G Specifications

Sony FE 20mm F1.8 G
MountSony E-mount
Format35mm full frame
Focal Length20mm
Maximum Aperturef/1.8
Minimum Aperturef/22
Lens Groups / Elements12 / 14
Aperture Blades9
Filter Diameter67mm
Magnification Ratio (Max)0.20 (AF), 0.22 (MF)
Angle of View94 degree
Minimum Focus Distance0.63 ft (AF), 0.59 ft (MF)
Dimensions(73.5 x 84.7 mm)
Weight13.2 oz (373 g)
PriceCheck Price

Did you check the latest Canon RF 24-105mm STM Lens?


Ishaan Sarna

Founder of,, and Music Producer by profession and also a Tech Enthusiast.