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Sony FE 50mm F1.8 vs Sony FE 50mm F2.5 G

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

Better figure, where one is clearly better

SonyFE 50mm F1.8SonyFE 50mm F2.5 G
Overview
ReleasedApril 2016April 2021
Optics
Lens typePrimePrime
Focal length50 mm50 mm
Maximum aperturef/1.8f/2.5
Minimum aperturef/22f/22
Optical constructionSix elements in five groups; double-Gauss designNine elements in nine groups
Special elementsOne aspherical elementTwo aspherical elements and ED glass
DiaphragmSeven rounded bladesSeven rounded blades
Angle of view47° full frame; 32° APS-C47° full frame; 32° APS-C
Mount and compatibility
MountsSony ESony E
Image circleFull frameFull frame
Image circle detailFull-frame coverage; 75 mm equivalent field of view on APS-CFull-frame coverage; 75 mm equivalent field of view on APS-C
Teleconverter support–Not compatible with SEL14TC or SEL20TC
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.45 m0.31 m (manual focus)
Maximum magnification0.14×0.21× (manual focus)
Optical stabilisationNoNo
Autofocus detail–Two linear motors; internal focusing. Maker does not designate these motors XD
Focus distance detail0.45 m minimum focus distanceMinimum focus 0.35 m in AF or 0.31 m in MF; Linear Response MF
Magnification detail0.14× maximum magnificationMaximum magnification 0.18× in AF or 0.21× in MF
Stabilisation detailNo optical stabilisation; compatible camera body stabilisation can be usedNo lens stabilisation; compatible bodies provide stabilisation
Design
Dust and moisture resistant–Yes
Filter diameter49 mm49 mm
Maximum diameter68.6 mm68 mm
Length59.5 mm45 mm
Weight186 g174 g
ControlsManual-focus ring; focus mode selected on camera; metal lens mountAperture ring with click on/off switch, AF/MF switch and one customisable focus-hold button
Weather resistance–Dust- and moisture-resistant design; not guaranteed completely dust- or moisture-proof
Dimensions detail68.6 mm maximum diameter × 59.5 mm lengthAluminium exterior and hood; internal focusing preserves lens length
Weight detailApproximately 186 g lens; separate hood and caps excluded. Sony Netherlands launch release states 192 g, superseded here by exact-model Sony Japan technical specificationsApproximately 174 g lens; separate hood and caps excluded
Lens hoodALC-SH146 round bayonet hood, suppliedALC-SH166 cap-type hood
In the boxALC-SH146 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 Netherlands announcement dated 29 March 2016 states availability from April 2016; exact first on-sale day not established. Main release retains month precision. Full independent exact-model reviews read: Photography Blog on Alpha 7S and Amateur Photographer Andy Westlake with Alpha 7R II autofocus experience. Review differences in corner sharpness and longitudinal fringing are preserved; the Blog explicitly qualifies its 12-megapixel test body. Reviews assess original launch-era focus behaviour, not subsequent firmwareSony 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. Sony specifies two linear motors and two aspherical elements, correcting Photography Blog’s XD and three-aspherical descriptions. Maker 0.35 m AF / 0.31 m MF corrects Photography Blog’s swapped macro-section distances. No unconfirmed fluorine coating is imported

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