Nikon AF-S NIKKOR 20mm f/1.8G ED vs Nikon AF-S NIKKOR 28mm f/1.8G

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

Better figure, where one is clearly better

AF-S NIKKOR 20mm f/1.8G ED compared with AF-S NIKKOR 28mm f/1.8G
NikonAF-S NIKKOR 20mm f/1.8G EDNikonAF-S NIKKOR 28mm f/1.8G
Overview
ReleasedSeptember 2014May 2012
Optics
Lens typePrimePrime
Focal length20 mm28 mm
Maximum aperturef/1.8f/1.8
Minimum aperturef/16f/16
Optical construction13 elements in 11 groups11 elements in nine groups
Special elementsTwo ED glass elements and two aspherical elementsTwo aspherical elements
CoatingsNano Crystal CoatNano Crystal Coat
DiaphragmSeven rounded bladesSeven rounded blades
Angle of viewFX and 35 mm film 94°; DX 70°FX and 35 mm film 75°; DX 53°
Mount and compatibility
MountsNikon F mountNikon F mount
Image circleFull frameFull frame
CompatibilityNikon F mount; full-frame/FX coverage, also usable on DXNikon F-mount G-type CPU lens covering FX; DX angle of view equivalent to 42 mm on FX
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.2 m0.25 m
Maximum magnification0.23×0.22×
Optical stabilisationNoNo
Autofocus detailRear focusing with Silent Wave Motor; manual focus possible, according to Nikon JapanRear focusing with an ultrasonic motor according to Nikon Japan; reviews identify Silent Wave Motor and manual override
Focus distance detailMinimum 0.2 m from the focal planeMinimum focus 0.25 m from the focal plane
Magnification detailNikon Japan specifies maximum 0.23×; Camera Labs measures 1:4, which is not substituted for the maker valueNikon UK specifies 0.22×, while Nikon Japan specifies 0.21×; the UK figure is retained
Stabilisation detailNo optical VR, confirmed by both reviewsNo optical VR, confirmed by both reviews
Video featuresCamera Labs observes visible focus breathing and some focus-ring play–
Design
Filter diameter77 mm67 mm
Maximum diameter82.5 mm73 mm
Length80.5 mm80.5 mm
Weight355 g330 g (better)
ControlsFocus ring, distance window and M/A–M switch; Photography Blog notes depth-of-field markings only at f/16 and no aperture ringM/A–M switch, focus ring and distance window
Filter detail77 mm screw-in filters; 0.75 mm thread 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 assignedBoth reviews identify a rubber seal at the mount; Digital Camera World notes it is not fully weather sealed. No general maker rating is assigned
Dimensions detailApproximately 82.5 mm maximum diameter × 80.5 mm length from the mount, according to Nikon JapanApproximately 73 mm maximum diameter × 80.5 mm from the mount
Weight detailApproximately 355 g–
Lens hoodHB-72 bayonet hood included–
In the boxLC-77 front cap, LF-4 rear cap, HB-72 hood and CL-1015 flexible pouchLC-67 front cap, LF-4 rear cap, HB-64 bayonet hood and CL-0915 flexible pouch
Release detailNikon Japan records first sale on 25 September 2014; the global announcement was issued on 12 SeptemberNikon Japan records 24 May 2012 availability. Nikon's Canadian announcement specifies the end of May 2012

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