Sony FE 20-70mm f/4 G Lens (Sony E)

BH #SO20704G • MFR #SEL2070G
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Sony FE 20-70mm f/4 G Lens (Sony E)
Key Features
  • Full-Frame | f/4 to f/22
  • Ultra-Wide Standard Zoom
  • Fast Internal Focusing System
  • Supports Micro-Step Aperture Control
A groundbreaking standard zoom lens for everyday use, the ultra-wide Sony FE 20-70mm f/4 G spans a popular and versatile range of focal lengths in a compact and lightweight form. Designed to accommodate new trends in shooting styles popular among vloggers and content creators, this ultra-wide to portrait-length zoom provides excellent edge-to-edge sharpness and outstanding image quality for all your imaging needs. Offering an expansive field of view to suit selfie, landscape, cityscape, and other wide-angle applications, this lens also offers fast, precise, and quiet autofocus performance as well as excellent close-up performance at all focal lengths.
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Sony FE 20-70mm f/4 G Overview

Learn from B&H Experts

From Manufacturer

A groundbreaking standard zoom lens for everyday use, the ultra-wide Sony FE 20-70mm f/4 G spans a popular and versatile range of focal lengths in a compact and lightweight form. Designed to accommodate new trends in shooting styles popular among vloggers and content creators, this ultra-wide to portrait-length zoom provides excellent edge-to-edge sharpness and outstanding image quality for all your imaging needs. Offering an expansive field of view to suit selfie, landscape, cityscape, and other wide-angle applications, this lens also offers fast, precise, and quiet autofocus performance as well as excellent close-up performance at all focal lengths.

G Lens Image Quality
Designed for demanding visual creators, this ultra-wide zoom offers no compromises regarding image quality, autofocus performance, or movie-making functionality.
  • Engineered for use with full-frame Sony E-mount mirrorless cameras, the lens's constant f/4 maximum aperture maintains consistent illumination throughout the entire zoom range.
  • Features a combination of three ED elements, two AA elements, one ED aspherical element, and one standard aspherical element to effectively eliminate chromatic and spherical aberrations while also rendering excellent edge-to-edge sharpness and color fidelity.
  • Rounded 9-blade aperture provides deep, soft bokeh.
Enhanced Autofocus and Video Capabilities
Offering an enhanced feature set for both still photography and videography, the FE 20-70mm f/4 G lens delivers fast focusing performance, improved tracking, and a series of attributes specifically designed for videographers.
  • Two XD (extreme dynamic) linear motors provide smooth, silent, and precise autofocus performance as well as improved tracking performance for photos and videos.
  • Internal focusing system maintains the overall length of the lens and does not rotate the lens barrel while focusing, enhancing the use of circular polarizers and variable ND filters.
  • Updated optical design effectively eliminates focus breathing, focus shift, and axial shift to prevent unwanted movements and angle of view variations during movie recording.
  • Aperture ring with On/Off click switch and iris lock switch prevents the aperture ring from being accidentally moved between the f/4 and f/22 settings.
  • Optimized for filming, the lens supports active mode image stabilization and micro-step aperture control for smooth and seamless video capture.
  • Two programmable focus hold buttons and a focus mode switch for intuitive focus control.
  • Minimum focusing distance of 9.8" with excellent close-up performance at all focal lengths.
Handling and Design
Compact and lightweight, this highly-versatile ultra-wide standard zoom offers a unique and expansive field of view for everyday shooting.
  • Hybrid construction uses both metal and plastic components to maximize both durability and a low weight design.
  • Fluorine coating on front lens element repels water, dust, fingerprints, and other contaminants while also making it easier to clean the front of the lens.
  • Dust and moisture-resistant design includes a rubber ring to seal the lens mount for working in inclement weather conditions.
UPC: 027242924017

Sony FE 20-70mm f/4 G Specs

Focal Length
20 to 70mm
Aperture
Maximum: f/4
Minimum: f/22
Lens Mount
Sony E
Lens Format Coverage
Full-Frame
Angle of View
94°
Minimum Focus Distance
9.8" / 25 cm
Magnification
1:2.56 Macro Reproduction Ratio
0.39x Magnification
Optical Design
16 Elements in 13 Groups
Aperture/Iris Blades
9, Rounded
Focus Type
Autofocus
Image Stabilization
No
Filter Size
72 mm (Front)
Dimensions
3.1 x 3.9" / 78.7 x 99 mm (Diameter x Length)
Weight
17.2 oz / 487.6 g
Packaging Info
Package Weight
1.825 lb
Box Dimensions (LxWxH)
7.7 x 4.5 x 4.2"

Sony FE 20-70mm f/4 G Reviews

Great service and a great lens

By Taylor
Rated 5 out of 5
Date: 2026-08-16

First of all B&H was easy to shop, ship, and arrived on time. Easy to recommend. As far as the lens goes: 20 to 70 mm represents a wonderful span the fits my use case well. Focusing is fast and accurate. I was pleasantly surprised by the sharpness of this lens. I have mostly been using the Sony 16mm g prime on my a7r4 and the only noticeable difference isn't very edge. I shoot a lot of low light using flash and wide open aperture is not important to me. So this lens is perfect.

Superb travel lens

By Robert
Rated 5 out of 5
Date: 2026-05-05

I just received & tested this lens today. I was looking for a travel lens to go with my Sony A7RV. I usually shoot with a trio of Sony lenses: 24 1.4 GM, 50 1.4 GM, 70-200 F4 G - great kit, but too much to carry. I thought I'd use a Sigma 20-200 superzoom (which I purchased from B&H) but it turned out less sharp than the reviews led me to believe. So I compared the Sony 20-70 F4 with the Sigma 20-200. Due to A7RV 61 mm sensor, IMO a 70 mm crop of photo on the 20-70 is sharper and has more pop than the Sigma lens at 200 mm - especially evident on low light indoors. I think the 20-200 would be fine on lower-resolution Sony sensors, but can't quite satisfy on a7RV. If the Sigma could take TCs I would keep it so I could photograph birds on travel, but 200 mm isn't sufficient reach. And I've found OM-1 II usually has better bird tracking than the Sony (its 300 F4 lens and the OM 50-200 are both superb, but heavier than I would take for anything but dedicated bird trips). We'll see if new Sony 100-400 will let me go back to being a 1-system user.....

See any errors on this page?

Any problem of dust when zooming (because the ...

Any problem of dust when zooming (because the extension of the barrel)?
Asked by: Aden
The Sony FE 20-70mm f/4 G Lens (Sony E) is sealed to prevent dust issues.
Answered by: Lawrence C
Date published: 2024-08-23

is the zoom automatically and manual ?

is the zoom automatically and manual ?
Asked by: Abel
The zoom is operated manually on the Sony FE 20-70mm f/4 G Lens (Sony E).
Answered by: Dan W
Date published: 2023-03-20

Does the barrel extend when zooming?

Does the barrel extend when zooming?
Asked by: Jeff
Yes the barrel extend when zooming on the Sony FE 20-70mm f/4 G Lens (Sony E) BH #SO20704G • MFR #SEL2070G
Answered by: Moe
Date published: 2024-05-02

Does this lens have enough resolving power to be ...

Does this lens have enough resolving power to be able to provide enough detail in high resolution camera such the Sony A7RIV?
Asked by: Marcia
Yes Sony FE 20-70mm f/4 G Lens (Sony E) does have enough resolving power to show high detail and great sharpness from a high resolution camera like the Sony A7RIV.
Answered by: Daniel C
Date published: 2023-05-14

Is this lens compatible with my Sony 6600?

Is this lens compatible with my Sony 6600?
Asked by: Stephen B
As Kirk has answered, yes it will work with Sony crop-sensor cameras. However the crop factor applies to aperture as well and not just focal length. On a Sony crop sensor camera this lens becomes a 35-105mm f/6 lens.
Answered by: James
Date published: 2023-12-29

is the zoom manual and automatic ?

is the zoom manual and automatic ?
Asked by: Abel
The FE 20-70mm f/4 G Lens (Sony E) is an auto focus lens but the zoom you would turn the zoom ring to zoom in and out.
Answered by: Jessica G
Date published: 2023-12-29

is this lens parfocal?

is this lens parfocal?
Asked by: Vladimir
The Sony FE 20-70mm f/4 G Lens (Sony E) is not a parfocal lens. However, the Sony FE 24-70mm f/2.8 GM II Lens (Sony E), BH #SO20704G, is a parfocal lens.
Answered by: Lawrence C
Date published: 2023-10-25

When this zoom and the barrel moves in and out, ...

When this zoom and the barrel moves in and out, does it pick up rain and dust in the air?
Asked by: William N
The Sony FE 20-70mm f/4 G Lens (Sony E) has a weather-sealed design that prevents moisture and dust from entering the lens or the camera.
Answered by: Boyd H
Date published: 2023-07-11
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