FE 20-70mm F4 G
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.
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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.
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.
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 30 fps, and high-frame-rate movie capture is smooth.
Advanced technology reduces focus breathing as well as focus and axial shift when zooming so that distracting image shifts are minimised. 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.
This lens features a dust and moisture resistant design and a fluorine-coated front element that repels contaminants. All controls, including customisable 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.
Impeccable Sony G Lens design emphasizes a graceful balance between high resolution and gorgeous background bokeh that can enhance the artist's vision.
 Advanced aspherical lens (AA lens)  Aspherical lens  ED (extra-low dispersion) aspherical 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)
 At 20 mm / Max. aperture  At 20 mm / F8 aperture
At 70 mm / Max. aperture At 70 mm / F8 aperture
Spatial frequency  10 lines pairs / mm  30 line pairs / mm
 Radial values  Tangential values
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.
Specifications & Features
- Minimum Focus Distance
- Wide: 0.30 m / Tele: 0.25 m (AF), 0.25 m (MF) (Wide: 0.99 ft / Tele: 0.82 ft (AF), 0.82 ft (MF))
- Maximum Magnification ratio (x)
- Filter Diameter (mm)
- 488 g(17.3 oz.)