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Sony FE 35mm F1.4 GM 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 35mm F1.4 GMSonyFE 40mm F2.5 G
Overview
ReleasedFebruary 2021April 2021
Optics
Lens typePrimePrime
Focal length35 mm40 mm
Maximum aperturef/1.4f/2.5
Minimum aperturef/16f/22
Optical construction14 elements in 10 groupsNine elements in nine groups
Special elementsTwo XA extreme-aspherical elements and one ED glass elementThree aspherical elements
CoatingsNano AR Coating II; fluorine coating on front element–
Diaphragm11 rounded bladesSeven rounded blades
Angle of view63° full frame; 44° APS-C57° full frame; 39° APS-C
Mount and compatibility
MountsSony ESony E
Image circleFull frameFull frame
Image circle detailFull-frame coverage; 52.5 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 distance0.25 m (manual focus)0.25 m (manual focus)
Maximum magnification0.26× (manual focus)0.23× (manual focus)
Optical stabilisationNoNo
Autofocus detailTwo XD linear motors; internal focusingTwo linear motors; internal focusing. Maker does not designate these motors XD
Focus distance detailMinimum focus 0.27 m with autofocus or 0.25 m with manual focus; Linear Response MFMinimum focus 0.28 m in AF or 0.25 m in MF; Linear Response MF
Magnification detailMaximum magnification 0.23× with autofocus or 0.26× with manual focusMaximum 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 diameter67 mm49 mm
Maximum diameter76 mm68 mm
Length96 mm45 mm
Weight524 g173 g
ControlsAperture ring with click on/off, 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 detail–Aluminium exterior and hood; internal focusing preserves lens length
Weight detailApproximately 524 g lens; separate hood and caps excludedApproximately 173 g lens; separate hood and caps excluded
Lens hoodALC-SH164 round bayonet hoodALC-SH166 cap-type hood
In the boxALC-SH164 hood, ALC-F67S front cap, ALC-R1EM rear cap and soft caseALC-SH166 hood, ALC-F49S front cap and ALC-R1EM rear cap; no case listed
Release detailSony announced on 13 January 2021 and specified February 2021 North American availability; Sony Hong Kong specified 3 February. Sony Japan postponed its original February release to 12 March 2021. Photography Blog gives late January UK availability, but no actual maker UK launch record was accessible; main date retains maker-confirmed February precisionSony 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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