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Sony FE 20-70mm F4 G · Photo source

Sony FE 20-70mm F4 G
Photo 1 of 7

Sony FE 20-70mm F4 G · Photo source

Sony

FE 20-70mm F4 G

Released February 2023

A full-frame E-mount F4 standard zoom extending to 20 mm, with two XD linear autofocus motors and aperture controls.

Mount
Sony E
Focal length
20–70 mm
Max aperture
f/4
Stabilisation
No
Weight
488 g

What reviewers say

Both praise the wider-than-usual zoom range, sharp images, close-ups, quick quiet autofocus and compact handling. Both find raw distortion needing correction; Amateur Photographer emphasises its severity and high price, while Photography Blog is more positive about value. Photography Blog notes weaker wide-open performance at 70mm; Amateur Photographer also finds corner darkening conspicuous and the aperture ring hard to locate with gloves.

From amateurphotographer.com, photographyblog.com, photographyblog.com and photographyblog.com

Optics

Lens type
Zoom
Focal length
20–70 mm
Maximum aperture
f/4
Minimum aperture
f/22
Optical construction
16 elements in 13 groups
Special elements
Two AA advanced-aspherical elements, one aspherical element, three ED glass elements and one ED aspherical element
Coatings
Fluorine coating on the front element; optimised antireflection coatings without a maker Nano AR designation
Diaphragm
Nine rounded blades
Angle of view
94°–34° full frame; 70°–23° APS-C

Mount and compatibility

Mounts
Sony E
Image circle
Full frame
Image circle detail
Full-frame coverage; 30–105 mm equivalent field of view on APS-C
Teleconverter support
Not compatible with SEL14TC or SEL20TC

Focus and stabilisation

Autofocus
Yes
Minimum focus distance
0.25 m
Maximum magnification
0.39×
Optical stabilisation
No
Autofocus detail
Two XD linear motors; internal focusing; compatible Alpha 1 30 fps bursts require maker-specified shutter-speed and AF conditions
Focus distance detail
Autofocus minimum 0.30 m at 20 mm or0.25 m at 70 mm; manual focus minimum 0.25 m throughout the zoom range; Linear Response MF
Magnification detail
Maximum magnification 0.39×
Stabilisation detail
No lens stabilisation; compatible bodies provide stabilisation
Video features
Reduced focus breathing and focus/axis shifts during zooming; compatible-body breathing compensation may alter field of view and quality. Body Active Mode requires compatibility and slightly narrows the field of view

Design

Dust and moisture resistant
Yes
Filter diameter
72 mm
Maximum diameter
78.7 mm
Length
99 mm
Weight
488 g
Controls
Aperture ring with click on/off and Iris Lock switch, AF/MF switch and two customisable focus-hold buttons
Zoom design
Extending zoom barrel; 99 mm main length at the wide-angle setting
Filter detail
72 mm front filter thread does not rotate during focusing
Weather resistance
Dust- and moisture-resistant design; not guaranteed completely dust- or moisture-proof
Weight detail
Approximately 488 g lens; separate hood and caps excluded
Lens hood
ALC-SH174 petal bayonet hood
In the box
ALC-SH174 hood, ALC-F72S front cap, ALC-R1EM rear cap and soft case
Release detail
Sony Europe specified February 2023 availability; Sony North America specified March, as did Photography Blog. Main date retains earliest maker regional month. Sony confirms F4 maximum aperture and two focus-hold buttons; Photography Blog’s F2.8 aperture-ring line and sibling 24–70 model reference are not imported

Pros and cons

Pros

  • 20–70 mm zoom range
  • 0.39× maximum magnification
  • 488 g lens weight

Cons

  • No optical stabilisation
  • Extends when zooming

Closest rivals

Model
MountFocal lengthMax apertureStabilisationWeightReleased
Sony E24–70 mmf/2.8No695 gMay 2022
Sony E28–70 mmf/3.5–5.6Yes293 gJan 2026
Sony E28–60 mmf/4–5.6No167 gOct 2020

Sources

  1. sony.jp/ichigan/products/SEL2070G/spec.html
  2. sony.jp/ichigan/products/SEL2070G/feature_1.html
  3. sony.co.uk/presscentre/sony-redefines-standard-zoom-lens-with-launch-of-ultra-w…
  4. sony.mediaroom.com/2023-01-17-Sony-Electronics-Introduces-New-Standard-Zoom-wit…
  5. amateurphotographer.com/review/sony-fe-20-70mm-f4-g-review
  6. photographyblog.com/reviews/sony_fe_20_70mm_f4_g_review

Photo: sony.jp

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