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Sony FE 24mm F1.4 GM vs Sony FE 28mm F2

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

Better figure, where one is clearly better

SonyFE 24mm F1.4 GMSonyFE 28mm F2
Overview
ReleasedOctober 2018March 2015
Optics
Lens typePrimePrime
Focal length24 mm28 mm
Maximum aperturef/1.4f/2
Minimum aperturef/16f/22
Optical construction13 elements in 10 groupsNine elements in eight groups
Special elementsTwo XA extreme-aspherical elements and three ED glass elementsThree aspherical elements including one AA (advanced aspherical), and two ED glass elements
CoatingsNano AR Coating; fluorine coating on front elementAll lens surfaces multi-coated to suppress flare and ghosting
Diaphragm11 rounded bladesNine rounded blades
Angle of view84° full frame; 61° APS-C75° full frame; 54° 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; 42 mm equivalent field of view on APS-C
Teleconverter supportNot compatible with SEL14TC or SEL20TCNot compatible with Sony E-mount teleconverters; SEL075UWC ultra-wide converter gives 21 mm F2.8, SEL057FEC fisheye converter gives 16 mm F3.5
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.24 m0.25 m (manual focus)
Maximum magnification0.17×0.16× (manual focus)
Optical stabilisationNoNo
Autofocus detailHigh-power DDSSM direct-drive ultrasonic motor; internal focusingLinear motor; internal focusing without changing overall lens length
Focus distance detailMinimum focus 0.24 m; Linear Response MF0.29 m minimum in autofocus; 0.25 m in manual focus
Magnification detailMaximum magnification 0.17×0.13× in autofocus; 0.16× in manual focus
Stabilisation detailNo lens stabilisation; compatible bodies provide stabilisationNo optical stabilisation
Design
Dust and moisture resistantYesYes
Filter diameter67 mm49 mm
Maximum diameter75.4 mm64 mm
Length92.4 mm60 mm
Weight445 g200 g
ControlsAperture ring with click on/off, AF/MF switch and one customisable focus-hold buttonManual-focus ring; focus mode selected on camera; aluminium-alloy exterior
Weather resistanceDust- and moisture-resistant design; not guaranteed completely dust- or moisture-proofDust and moisture resistant design; not guaranteed to prevent all ingress
Dimensions detail–64 mm maximum diameter × 60 mm length
Weight detailApproximately 445 g lens; separate hood and caps excludedApproximately 200 g lens; separate hood and caps excluded
Lens hoodALC-SH154 petal bayonet hoodALC-SH112 petal bayonet hood, supplied
In the boxALC-SH154 hood, ALC-F67S front cap, ALC-R1EM rear cap and carrying caseALC-SH112 hood, front cap and rear cap; no case listed
Release detailSony US announced shipment in October 2018; Sony Japan specified 26 October 2018 sale. Main date retains the earlier regional month precision. Digital Camera World explicitly based its review on one day of shooting and had no full laboratory results; its edge-sharpness reservations differ from Photography Blog’s assessmentSony Singapore’s5 March2015 press release reproduced in full by Shutter Journey states this exact lens available from March2015 onwards; exact first day unconfirmed. SonyJapan gives17 April2015 and SonyUS May2015, so main release retains earlier Singapore month. Announcement3March2015 is the dated SonyUS release reproduced by DPReview. SonyHK launch PDF availability table could not be retrieved through proxy, so no date borrowed from it. Full exact independent reviews read: Photography Blog MarkGoldstein Alpha7S and Amateur Photographer AndyWestlake predominantlyAlpha7 withAlpha7R AF experience. Blog copied28–70 lens name in sharpness intro and incorrect55mm thread/54° full-frame angle/no-case contradiction; exact maker49mm/75°/no-case fields supersede these. Reviews retained with body and raw-correction qualifications

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