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Canon EF 24mm f/2.8 IS USM vs Canon EF 28mm f/2.8 IS USM

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

Better figure, where one is clearly better

CanonEF 24mm f/2.8 IS USMCanonEF 28mm f/2.8 IS USM
Overview
ReleasedJune 2012June 2012
Optics
Lens typePrimePrime
Focal length24 mm28 mm
Maximum aperturef/2.8f/2.8
Minimum aperturef/22f/22
Optical constructionEleven elements in nine groupsNine elements in seven groups
Special elementsGlass-moulded aspherical element according to Canon Camera MuseumGlass-moulded aspherical element
CoatingsSuper Spectra coating according to Canon UKSuper Spectra coating according to Canon UK
DiaphragmSeven-blade circular apertureSeven-blade circular aperture according to Canon Camera Museum
Angle of view84° diagonal, 74° horizontal and 53° vertical75° diagonal, 65° horizontal and 46° vertical
Mount and compatibility
MountsCanon EFCanon EF
Image circleFull frameFull frame
CompatibilityFull-frame and APS-C Canon EF DSLR cameras according to Canon UKCanon EF full-frame and APS-C cameras; EOS M requires EF-EOS M adapter
Teleconverter support–Canon extenders not compatible
Adaptor supportEOS M compatibility with the EF-EOS M mount adaptor according to Canon UKExtension tube EF12 II gives 0.71–0.50× magnification; EF25 II gives 1.30–1.11×
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.2 m0.23 m
Maximum magnification0.23×0.2×
Optical stabilisationYesYes
Autofocus detailRing USM with full-time manual focus according to Canon UK's specification page; Canon Camera Museum instead describes micro USMRing USM with full-time manual focus according to Canon UK; Camera Museum describes micro USM instead
Focus distance detailConstant physical length and non-rotating filter during focusing according to PhotozoneInternal focusing with a non-rotating front and constant physical length according to The Digital Picture
Magnification detail0.23× native; 0.62–0.43× with Extension Tube EF12 II and 1.13–0.95× with EF25 II according to Canon UK–
Stabilisation detailFour-stop optical stabilisation claimed by Canon UKMaker claim up to four stops; The Digital Picture and Photozone each report approximately three stops in their tests
Design
Dust and moisture resistantNoNo
Filter diameter58 mm58 mm
Maximum diameter68.4 mm68.4 mm
Length55.7 mm51.5 mm
Weight280 g260 g
ControlsAF/MF and stabiliser switches, focus ring, distance window and depth-of-field scale–
Weather resistanceNo weather sealing according to both independent exact-model reviewsNo weather sealing according to The Digital Picture and Photozone
Dimensions detail68.4 mm maximum diameter × 55.7 mm length and 280 g according to Canon UK; dimensions in retracted stateMaximum diameter × length in retracted state
Lens hoodOptional EW-65B; Canon UK's box list excludes a hoodOptional EW-65B; LP1014 pouch listed as an accessory
In the boxLens, E-58U front cap, Lens Dust Cap E and user manual according to Canon UKLens, E-58U front cap, Lens Dust Cap E and user manual according to Canon UK
Release detailCanon Camera Museum records June 2012 marketing and explicitly names the November 1988 EF 24mm f/2.8 as its predecessorCanon Camera Museum records June 2012 marketing and explicitly identifies the April 1987 EF 28mm f/2.8 as its predecessor

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