Sony FE 50mm F1.2 GM vs Sony Sonnar T* FE 55mm F1.8 ZA

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

Better figure, where one is clearly better

FE 50mm F1.2 GM compared with Sonnar T* FE 55mm F1.8 ZA
SonyFE 50mm F1.2 GMSonySonnar T* FE 55mm F1.8 ZA
Overview
ReleasedApril 2021December 2013
Optics
Lens typePrimePrime
Focal length50 mm55 mm
Maximum aperturef/1.2f/1.8
Minimum aperturef/16f/22
Optical construction14 elements in 10 groupsSeven elements in five groups; Sonnar design
Special elementsThree XA extreme-aspherical elementsThree aspherical elements, including two with both surfaces aspherical
CoatingsNano AR Coating II; fluorine coating on front elementZEISS T* coating
Diaphragm11 rounded bladesNine rounded blades; maker specifies circular opening through two stops below maximum aperture
Angle of view47° full frame; 32° APS-C43° full frame; 29° 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; 82.5 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 distance0.4 m0.5 m
Maximum magnification0.17×0.14×
Optical stabilisationNoNo
Autofocus detailFour XD linear motors and a floating-focus mechanismLinear motor; internal focusing
Focus distance detailMinimum focus 0.4 m; Linear Response MFMinimum focus 0.5 m; electronic manual-focus ring
Magnification detailMaximum magnification 0.17×–
Stabilisation detailNo lens stabilisation; compatible bodies provide stabilisationNo lens stabilisation; compatible bodies provide stabilisation
Design
Dust and moisture resistantYesYes
Filter diameter72 mm49 mm
Maximum diameter87 mm64.4 mm
Length108 mm70.5 mm
Weight778 g281 g (better)
ControlsAperture ring with click on/off, AF/MF switch and two customisable focus-hold buttonsManual-focus ring; focus mode selected on the camera; no aperture ring
Filter detail–49 mm front filter thread
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; internal focusing preserves overall length
Weight detailApproximately 778 g lens; separate hood and caps excludedApproximately 281 g lens; separate hood, caps and case excluded
Lens hoodALC-SH163 round bayonet hoodALC-SH131 petal bayonet hood
In the boxALC-SH163 hood, ALC-F72S front cap, ALC-R1EM rear cap, soft case and case strapALC-SH131 hood, front cap, rear cap and soft case
Release detailSony UK announced on 16 March 2021 and specified April 2021 availability. Photography Blog gives May 2021; the maker's earlier month is retained. UK launch price omitted because the actual Sony UK press page lists only a euro priceSony Japan revised its initial January 2014 launch to 20 December 2013 on 2 December 2013; main date retains month precision for regional release. Photography Blog Mark Goldstein tested an Alpha 7R in 2013; Digital Camera World Matthew Richards published in 2022. Their wide-open sharpness judgments differ. Maker lists a soft case despite Photography Blog saying no case was supplied

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