FE 20mm F1.8 G
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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, and matched with an E-mount body makes up a versatile, mobile system with outstanding AF performance, control, and reliability for a wide variety of shooting needs.
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.
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 light weight 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.
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.
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.
Two XD (eXtreme Dynamic) Linear Motors easily keep up with the high-speed capabilities of today’s most advanced camera bodies, taking advantage of their full autofocus speed, precision, and tracking potential to capture the most dynamic subjects. New control algorithms make it possible to drive the lens’s large focus group smoothly and without delays for responsive, silent, low-vibration autofocus.
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.
A focus hold button, focus mode switch, aperture ring, and other controls are designed and positioned for easy operation and a smooth workflow. Alternative functions that support the user’s individual shooting needs can be assigned to the focus hold button via camera body menu settings. The front lens element is fluorine coated to repel water and grime, and the lens' dust and moisture resistant design provides the reliability needed for outdoor use in challenging conditions.
Impeccable Sony G Lens design emphasises a graceful balance between high resolution and gorgeous background bokeh that can enhance the artist’s vision.
 Advanced aspherical lens (AA lens)  ED (extra-low dispersion) glass
MTF (Modulation Transfer Function) describes how well a lens can reproduce fine details, measured as the degree of contrast achieved between finely spaced lines.
 Contrast (%)  Distance from optical center of lens (mm)
 Max. aperture  F8 aperture  Spatial frequency
 10 lines pairs / mm  30 line pairs / mm
 Radial values  Tangential values
Specifications & Features
- Minimum Focus Distance
- 0.19 m (AF), 0.18 m (MF) (0.63 ft (AF), 0.59 ft (MF))
- Maximum Magnification ratio (x)
- 0.20 (AF), 0.22 (MF)
- Filter Diameter (mm)
- 373 g (13.2 oz.)