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Sony FE 20-70mm F4 G vs Sony FE 24-105mm F4 G OSS

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

SonyFE 20-70mm F4 GSonyFE 24-105mm F4 G OSS
Overview
ReleasedFebruary 2023November 2017
Optics
Lens typeZoomZoom
Focal length20–70 mm24–105 mm
Maximum aperturef/4f/4
Minimum aperturef/22f/22
Optical construction16 elements in 13 groups17 elements in 14 groups
Special elementsTwo AA advanced-aspherical elements, one aspherical element, three ED glass elements and one ED aspherical elementFour aspherical elements, including two AA advanced-aspherical elements, and three ED elements
CoatingsFluorine coating on the front element; optimised antireflection coatings without a maker Nano AR designationNano AR coating and fluorine coating on the front element
DiaphragmNine rounded bladesNine rounded blades
Angle of view94°–34° full frame; 70°–23° APS-C84°–23° full frame; 61°–15° APS-C
Mount and compatibility
MountsSony ESony E
Image circleFull frameFull frame
Image circle detailFull-frame coverage; 30–105 mm equivalent field of view on APS-CFull-frame coverage; 36–157.5 mm equivalent field of view on APS-C
Teleconverter supportNot compatible with SEL14TC or SEL20TCNot compatible with SEL14TC or SEL20TC
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.25 m0.38 m
Maximum magnification0.39×0.31×
Optical stabilisationNoYes
Autofocus detailTwo XD linear motors; internal focusing; compatible Alpha 1 30 fps bursts require maker-specified shutter-speed and AF conditionsDirect Drive SSM motor and internal focusing
Focus distance detailAutofocus 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 MFMinimum focus 0.38 m; electronic manual focus ring
Magnification detailMaximum magnification 0.39×–
Stabilisation detailNo lens stabilisation; compatible bodies provide stabilisationOptical SteadyShot; stabilisation on/off switch
Video featuresReduced 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 resistantYesYes
Filter diameter72 mm77 mm
Maximum diameter78.7 mm83.4 mm
Length99 mm113.3 mm
Weight488 g663 g
ControlsAperture ring with click on/off and Iris Lock switch, AF/MF switch and two customisable focus-hold buttonsAF/MF switch, stabilisation switch and one customisable focus-hold button
Zoom designExtending zoom barrel; 99 mm main length at the wide-angle settingExtending zoom barrel; focusing does not change overall length
Filter detail72 mm front filter thread does not rotate during focusing77 mm front filter thread does not rotate during focusing
Weather resistanceDust- and moisture-resistant design; not guaranteed completely dust- or moisture-proofDust- and moisture-resistant design; not guaranteed completely dust- or moisture-proof
Weight detailApproximately 488 g lens; separate hood and caps excludedApproximately 663 g lens; separate hood and caps excluded
Lens hoodALC-SH174 petal bayonet hoodALC-SH152 petal bayonet hood
In the boxALC-SH174 hood, ALC-F72S front cap, ALC-R1EM rear cap and soft caseALC-SH152 hood, ALC-F77S front cap, ALC-R1EM rear cap and soft case
Release detailSony 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 importedSony Japan specified 25 November 2017 and Hong Kong end November; main date retains regional month precision. Photography Blog calls the hood round but lacked it in its sample; current maker specifications confirm petal shape. Reviews disagree on distortion and barrel material, so no unverified material claim is used. Amateur Photographer’s Alpha 9 AF-C failure is a historical sample observation; Sony separately acknowledged selected early serial-number units with focusing defects

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