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Nikon AF-S NIKKOR 20mm f/1.8G ED vs Nikon NIKKOR Z 20mm f/1.8 S

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

Better figure, where one is clearly better

NikonAF-S NIKKOR 20mm f/1.8G EDNikonNIKKOR Z 20mm f/1.8 S
Overview
ReleasedSeptember 2014March 2020
Optics
Lens typePrimePrime
Focal length20 mm20 mm
Maximum aperturef/1.8f/1.8
Minimum aperturef/16f/16
Optical construction13 elements in 11 groupsFourteen elements in eleven groups
Special elementsTwo ED glass elements and two aspherical elementsThree ED and three aspherical elements
CoatingsNano Crystal CoatNano Crystal Coat
Aperture detail–f/1.8 maximum; f/16 minimum
DiaphragmSeven rounded bladesNine rounded blades
Angle of viewFX and 35 mm film 94°; DX 70°FX 94°; DX 70°
Mount and compatibility
MountsNikon F mountNikon Z mount
Image circleFull frameFull frame
CompatibilityNikon F mount; full-frame/FX coverage, also usable on DXNikon Z mount; full-frame FX and DX cameras
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.2 m0.2 m
Maximum magnification0.23×0.19×
Optical stabilisationNoNo
Autofocus detailRear focusing with Silent Wave Motor; manual focus possible, according to Nikon JapanNikon's launch announcement identifies a stepping motor for fast, quiet autofocus; UK page describes a multi-focusing system
Focus distance detailMinimum 0.2 m from the focal planeInternal focusing; minimum 0.2 m from focal plane; no mechanical end stops on the focus ring, as Photography Blog notes
Magnification detailNikon Japan specifies maximum 0.23×; Camera Labs measures 1:4, which is not substituted for the maker valueMaximum reproduction ratio 0.19×
Stabilisation detailNo optical VR, confirmed by both reviewsNo lens optical VR, as Digital Camera World confirms; compatible camera bodies can provide in-body stabilisation
Video featuresCamera Labs observes visible focus breathing and some focus-ring playNikon describes smooth, quiet focus and suppressed focus breathing, with silent aperture control using the control ring
Design
Dust and moisture resistant–Yes
Filter diameter77 mm77 mm
Maximum diameter82.5 mm84.5 mm
Length80.5 mm108.5 mm
Weight355 g505 g
ControlsFocus ring, distance window and M/A–M switch; Photography Blog notes depth-of-field markings only at f/16 and no aperture ringProgrammable focus/control ring and A/M switch; control ring can adjust ISO, aperture or exposure compensation; no focus-distance scale
Filter detail77 mm screw-in filters; 0.75 mm thread pitch77 mm screw-in filters, 0.75 mm pitch
Weather resistanceCamera Labs identifies a rubber gasket at the mount and no further weather sealing; Photography Blog describes the lens as unsealed. A general weather-resistance rating is therefore not assignedNikon states extensive sealing of movable barrel parts against dust and moisture; not a waterproof guarantee
Dimensions detailApproximately 82.5 mm maximum diameter × 80.5 mm length from the mount, according to Nikon JapanApproximately 84.5 mm maximum diameter × 108.5 mm from the camera lens mount flange
Weight detailApproximately 355 gApproximately 505 g
Lens hoodHB-72 bayonet hood includedHB-95 included
In the boxLC-77 front cap, LF-4 rear cap, HB-72 hood and CL-1015 flexible pouchLC-77B front cap, LF-N1 rear cap, HB-95 hood and CL-C1 case
Release detailNikon Japan records first sale on 25 September 2014; the global announcement was issued on 12 SeptemberNikon USA's February 2020 announcement specifies March 2020 availability; an earlier confirmed retail day was not found

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