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Canon EF 24–105mm f/4L IS II USM vs Canon EF 28mm f/2.8

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

Better figure, where one is clearly better

CanonEF 24–105mm f/4L IS II USMCanonEF 28mm f/2.8
Overview
Released2016April 1987
Optics
Lens typeZoomPrime
Focal length24–105 mm28 mm
Maximum aperturef/4f/2.8
Minimum aperturef/22f/22
Optical constructionSeventeen elements in twelve groupsFive elements in five groups
Special elementsFour aspherical elementsOne moulded glass aspherical element, at the front of the optical system
CoatingsAir Sphere Coating; front and rear fluorine coating according to The Digital Picture–
DiaphragmTen blades with a circular apertureFive blades
Angle of view84°–23°20′ diagonal, 74°–19°20′ horizontal and 53°–13° vertical75° diagonal, 65° horizontal and 46° vertical according to Canon's manual
Mount and compatibility
MountsCanon EFCanon EF
Image circleFull frameFull frame
CompatibilityCanon EF full-frame and APS-C DSLRs; EOS M cameras require an EF-EOS M mount adaptorCanon EF cameras with full-frame or APS-C sensors
Teleconverter supportCanon's manual excludes extenders–
Adaptor supportEF12 II gives 0.60–0.50× at 24 mm and 0.41–0.12× at 105 mm; EF25 II is incompatible at 24 mm and gives 0.61–0.27× at 105 mm–
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.45 m0.3 m
Maximum magnification0.24×0.13×
Optical stabilisationYes–
Autofocus detailUSM autofocus with full-time manual focusing. Canon's manual specifies turning the ring with the shutter half-pressed after One Shot AFConventional motor autofocus according to Photozone; no full-time manual override according to The Digital Picture
Focus distance detailInternal focusing according to The Digital Picture; Canon instructs users to finish zooming before focusingMechanical manual focusing; Canon's manual requires the MF switch position. Inner tube extends towards close focus but the front does not rotate according to Photozone
Stabilisation detailCanon claims four-stop optical stabilisation. The exact manual describes automatic adjustment for still subjects and panning, with correction perpendicular to the panning direction–
Design
Dust and moisture resistantYes–
Filter diameter77 mm52 mm
Maximum diameter83.5 mm67.4 mm
Length118 mm42.5 mm
Weight795 g185 g
ControlsAF/MF and stabilisation switches, separate focus and zoom rings, distance window, infrared index and transport lock at 24 mmAF/MF switch, focus ring, distance window, depth-of-field scale and infrared focus index
Zoom designExtending barrel; zoom lock holds the shortest 24 mm position–
Weather resistanceCanon UK describes dust and moisture sealing; the manual identifies a rubber mount ring. The Digital Picture recommends a protective filter to complete front sealing–
Dimensions detailMaximum diameter × retracted length; size and 795 g weight are lens-only. Caps add 24.2 mm to length according to Canon's manual67.4 mm maximum diameter × 42.5 mm length; dimensions and 185 g weight are lens-only. Front and rear caps add 21.5 mm according to Canon's manual
Lens hoodEW-83M hood with release button; reversible for storageEW-65 II reversible hood according to Canon's manual
In the boxLens, E-77 II front cap, Dust Lens Cap E, EW-83M hood, LP1219 case and manual according to Canon UK–
Release detailCanon Camera Museum's exact-model table records October 2016 marketing; its later RF 24–105mm page retrospectively says November 2016. The year is used because the maker gives conflicting months without explaining a regional differenceCanon Camera Museum records April 1987 marketing; no first-sale day is given

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