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Sony FE 24mm F2.8 G vs Sony FE 40mm F2.5 G

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

Better figure, where one is clearly better

SonyFE 24mm F2.8 GSonyFE 40mm F2.5 G
Overview
ReleasedApril 2021April 2021
Optics
Lens typePrimePrime
Focal length24 mm40 mm
Maximum aperturef/2.8f/2.5
Minimum aperturef/22f/22
Optical constructionEight elements in seven groupsNine elements in nine groups
Special elementsThree aspherical elements and ED glassThree aspherical elements
DiaphragmSeven rounded bladesSeven rounded blades
Angle of view84° full frame; 61° APS-C57° full frame; 39° APS-C
Mount and compatibility
MountsSony ESony E
Image circleFull frameFull frame
Image circle detailFull-frame coverage; 36 mm equivalent field of view on APS-CFull-frame coverage; 60 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 distance0.18 m (manual focus)0.25 m (manual focus)
Maximum magnification0.19× (manual focus)0.23× (manual focus)
Optical stabilisationNoNo
Autofocus detailTwo linear motors; internal focusing. Maker does not designate these motors XDTwo linear motors; internal focusing. Maker does not designate these motors XD
Focus distance detailMinimum focus 0.24 m in AF or 0.18 m in MF; Linear Response MFMinimum focus 0.28 m in AF or 0.25 m in MF; Linear Response MF
Magnification detailMaximum magnification 0.13× in AF or 0.19× in MFMaximum magnification 0.20× in AF or 0.23× in MF
Stabilisation detailNo lens stabilisation; compatible bodies provide stabilisationNo lens stabilisation; compatible bodies provide stabilisation
Design
Dust and moisture resistantYesYes
Filter diameter49 mm49 mm
Maximum diameter68 mm68 mm
Length45 mm45 mm
Weight162 g173 g
ControlsAperture ring with click on/off switch, AF/MF switch and one customisable focus-hold buttonAperture ring with click on/off switch, AF/MF switch and one customisable focus-hold button
Weather resistanceDust- and moisture-resistant design; not guaranteed completely dust- or moisture-proofDust- and moisture-resistant design; not guaranteed completely dust- or moisture-proof
Dimensions detailAluminium exterior and hood; internal focusing preserves lens lengthAluminium exterior and hood; internal focusing preserves lens length
Weight detailApproximately 162 g lens; separate hood and caps excludedApproximately 173 g lens; separate hood and caps excluded
Lens hoodALC-SH165 round bayonet hoodALC-SH166 cap-type hood
In the boxALC-SH165 hood, ALC-F49S front cap and ALC-R1EM rear cap; no case listedALC-SH166 hood, ALC-F49S front cap and ALC-R1EM rear cap; no case listed
Release detailSony Europe specified April 2021 availability; March 2021 launch in Photography Blog describes announcement. Both full reviews were independently authored: Mark Goldstein for Photography Blog and Rod Lawton for Digital Camera World. Their edge-sharpness assessments differ. Sony specifies two linear motors, correcting Photography Blog’s XD designation. No unconfirmed fluorine coating is importedSony Europe specified April 2021 availability, separately from the 23 March announcement. Photography Blog Mark Goldstein and Digital Camera World Rod Lawton independently reviewed this exact model; shading judgments differ. Sony specifies two linear motors and three aspherical elements; no XD, ED or fluorine designation is borrowed from Photography Blog’s conflicting description

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