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G Master
Learn more about G Master
An F2 standard zoom that rivals prime lens quality

Sony's first G Master™ standard zoom with constant F2 max. aperture is ideal for portraits and many other subjects. Its F2 aperture, superb optics, and mobility will appeal to even the most demanding pros. Sharpness and contrast rival prime lens quality, while brightness, unrivalled AF, zoom, and a compact, lightweight design offer extraordinary creative scope for stills and movies.

Discover our
FE 28–70 mm F2 GM

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FE 28–70 mm F2 GM Photo Gallery
Example image showing a woman stretching her arms behind her head
Sharp, refined rendering in a unique constant F2 standard zoom

Optics featuring large elements manufactured using advanced techniques, including three XA (extreme aspherical) elements, ensure high corner-to-corner resolution at F2 throughout the zoom range. One ED (extra-low dispersion) and three Super ED elements reduce chromatic aberration, Nano AR Coating II cuts flare/ghosting, floating focus boosts close-focus resolution, and gorgeous G Master bokeh enhances dimensionality.

Usage image showing a man carrying in one hand, apparently effortlessly, a camera body with the lens mounted and wrist strap attached
A compact, mobile lens packed with superb optics and functionality

This compact, lightweight F2 zoom lens delivers advanced standard zoom functionality, image quality that rivals the best primes, and stunning AF. Innovative technologies including advanced optics and XD (extreme dynamic) linear motors make all of this fit in a constant F2 zoom that is only 92.9 x 139.8 mm (3.75 x 5.63) and weighs just 918 g (32.4 oz). Stress-free shooting with all the advantages of a standard zoom and no compromise on image quality.

Example image showing a ballerina in a blue leotard and white tutu, striking a pose with one leg raised
Precise, tenacious AF tracking with instant response

Four XD (extreme dynamic) linear motors and the latest algorithm keep the large F2 focus group under precise control. Reliable focus tracking and instant response are essential in professional situations such as weddings or sports events where missing even one frame can be disastrous. This lens is fully compatible with the 120fps burst capability of the α9 III, and tracking continues smoothly even while zooming.

Usage image showing a photographer shooting a ballet rehearsal with a camera mounted on a gimbal
Designed for refined, expressive movie production

Focus breathing is effectively reduced for smooth movie imagery with minimal angle-of-view instability. Rack focus and zoom effects can be used with F2 depth of field to create natural transitions that guide the viewer's eye. Critical focus for high frame rate 4K 120p/FHD 240p recording is easy. The XD linear motors and a new aperture unit are quiet in operation, and α body breathing compensation is supported.

Top: product image showing overall and close-up right side views of the lens barrel, Bottom: illustration showing locations of dust- and moisture-resistant seals on the lens body
Operability and reliability that support professional needs

Linear Response MF provides intuitive focus control, adjustable zoom ring torque allows easy customisation, and an aperture ring with a click ON/OFF switch provides hands-on aperture control. Two customisable focus hold buttons offer even more flexibility. Dust and moisture resistance ensures reliability in challenging outdoor conditions, while a fluorine coating on the front element effectively repels contaminants.

Configuration diagram of the lens showing locations of XA lens and ED glass elements
Lens Configuration

G Master series lenses take imaging and expression to previously unattainable levels with a stunning blend of extremely high resolution and softly dissolving background bokeh

[1] Extreme aspherical lens (XA) lens [2] Aspherical lens [3] Super ED glass [4] ED (extra-low dispersion) glass

MTF (modulation transfer function) charts
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 28 mm / Max. aperture [4] At 28 mm / F8 aperture [5] At 70 mm / Max. aperture [6] At 70 mm / F8 aperture [7] Spatial frequency [8] 10 line pairs / mm [9] 30 line pairs / mm [10] Radial values [11] Tangential values

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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. Zooming ring 4. Aperture ring 5. Focus mode switch 6. IRIS LOCK switch 7. Aperture click switch 8. Zoom smoothness switch

FE 28–70 mm F2 GM compatibility

Follow the link below for lens/body compatibility details.

Specifications and Features

  • Advanced optics with three XA (extreme aspherical) elements achieve superb resolution and bokeh

  • F2 throughout the zoom range in a remarkably compact, lightweight 918 g (32.4 oz) lens

  • Four XD (extreme dynamic) linear motors and advanced control deliver high-performance AF

  • New movie expression with narrow F2 depth-of-field, reliable AF tracking, and minimal breathing

  • Pro-grade operability and reliability

Minimum focus distance
1.25 ft (0.38 m)
Maximum Magnification ratio (x)
0.23
Filter Diameter (mm)
86
Weight
918 g (32.4 oz.)
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