Lens from left front side view
Left side view of the lens
Top side view of the lens
Right side view of the lens
Lens attached to the α ILCE-7C
Lens attached to the α ILCE-7M4
Compact, lightweight standard zoom covers ultra-wide 20 mm to 70 mm

Redefines the standard zoom category with a focal length range that extends from ultra-wide 20 mm to 70 mm in a remarkably compact, lightweight full-frame lens with maximum aperture constant at F4.

No compromises in image quality, AF performance, or movie operability.

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FE 20–70 mm F4 G Photo Gallery
Wide-angle shot of desert landscape with sunset behind distant mountains
Standard zoom redefined: ultra-wide 20 mm to 70 mm

This versatile, high-performance E-mount lens offers a zoom range that extends from ultra-wide 20 mm to 70 mm in a compact, lightweight model that has been painstakingly designed with no compromises in image quality, AF performance, or movie operability.

Profile portrait of woman looking right on ship lower deck
Outstanding G Lens image quality

Two AA (advanced aspherical) elements and three ED (Extra-low Dispersion) glass elements simultaneously correct chromatic and spherical aberration for extremely high optical performance right out to the image edges, from ultra-wide 20 mm to 70 mm. Deep, soft bokeh is enhanced by a 9-blade circular aperture and optimally tuned spherical aberration, supporting the creation of beautiful, memorable imagery.

Illustration of XD Linear Motor
Peak AF performance for stills and movies

Two XD (extreme dynamic) Linear Motors provide high thrust for fast, quiet, smooth focus drive. Improved thrust efficiency results in up to a 60% increase in AF speed, and tracking performance has been improved by as much as two times so tracking is reliable and precise. Moving subjects are reliably tracked when shooting continuous stills at up to 30fps, and high-frame-rate movie capture is smooth.

Wide-angle portrait of woman with part of suspension bridge span in background
Refined movie imagery

Advanced technology reduces focus breathing as well as focus and axial shift when zooming so that distracting image shifts are minimized. This lens has also been designed for quiet operation when shooting movies, with XD Linear Motors and a newly developed aperture unit that dramatically reduce noise and vibration. The breathing compensation function provided in compatible α series bodies is also supported.

Man shooting in coastal location with camera hand-held, using viewfinder
High-level operability and reliability for any environment

This lens features a dust and moisture resistant design and a fluorine-coated front element that repels contaminants. All controls, including customizable focus hold buttons and independent rings for focus, zoom, and aperture are designed for smooth, versatile control when shooting stills or movies. A focus mode switch makes it easy to switch between autofocus and manual focus on the fly.

Illustration of lens structure
Lens Configuration

Impeccable Sony G Lens design emphasizes a graceful balance between high-resolution and gorgeous background bokeh that can enhance the artist’s vision.
[1] Advanced aspherical lens (AA lens)  [2] Aspherical lens  [3] ED (extra-low dispersion) aspherical lens  [4] ED (extra-low dispersion) glass

Illustration of MTF chart
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 centre of lens (mm)
[3] At 20 mm/Max. aperture [4] At 20 mm/F8 aperture
[5] At 70 mm/Max. aperture [6] At 70 mm/F8 aperture
[7] Spatial frequency [8] 10 lines pairs/mm [9] 30 line pairs/mm
[10] Radial values [11] Tangential values

Close-up photo of the FX6 being used to film
Advantages of Sony’s lenses for video shooting

Learn the four unique advantages of using Sony's E-mount lens for video shooting. The combination of Sony's lenses and cameras will enhance your video creation experience.

Lens Controls

1. Focusing ring - 2. Focus hold button - 3. Zoom ring - 4. Aperture ring - 5. Focus mode switch - 6. IRIS LOCK switch - 7. Aperture click switch

FE 20–70 mm F4 G compatibility

Follow the link below for lens/body compatibility details.

Specifications and Features

  • Standard zoom range from ultra-wide 20 mm to 70 mm

  • Two AA elements and three ED glass elements for extremely high optical performance

  • Image shift minimized by reduced focus breathing and axial shift when zooming

  • Two XD Linear Motors for fast, quiet, smooth focus drive

  • Customizable focus hold buttons and independent rings for focus, zoom, and aperture

Minimum Focus Distance
Wide: 0.99 ft; Tele: 0.82 ft (AF), 0.82 ft (MF) (Wide: 0.30 m/Tele: 0.25 m (AF), 0.25 m (MF))
Maximum Magnification ratio (x)
0.39
Filter Diameter (mm)
72
Weight
17.3 oz (488 g)
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