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Canon EF 16–35mm f/2.8L III USM vs Canon EF 24mm f/2.8

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

Better figure, where one is clearly better

CanonEF 16–35mm f/2.8L III USMCanonEF 24mm f/2.8
Overview
ReleasedOctober 2016November 1988
Optics
Lens typeZoomPrime
Focal length16–35 mm24 mm
Maximum aperturef/2.8f/2.8
Minimum aperturef/22f/22
Optical constructionSixteen elements in eleven groupsTen elements in ten groups; floating rear focusing system according to Canon Camera Museum
Special elementsTwo large-diameter glass-moulded aspherical elements, one ground aspherical element and two UD elements–
CoatingsAir Sphere Coating and Subwavelength Structure Coating; front and rear fluorine coatings according to The Digital Picture–
DiaphragmNine circular bladesSix blades according to Canon Camera Museum
Angle of viewHorizontal 98°–54°; vertical 74°10′–38°; diagonal 108°10′–63°84° diagonal, 74° horizontal and 53° vertical according to Canon's manual
Mount and compatibility
MountsCanon EFCanon EF
Image circleFull frameFull frame
CompatibilityFull-frame and APS-C Canon EF DSLRsCanon EF cameras with full-frame or APS-C sensors
Teleconverter supportExtenders cannot be used; the manual also states that no compatible close-up lenses are available–
Adaptor supportCanon UK lists EOS M use with the EF-EOS M mount adaptor–
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.28 m0.25 m
Maximum magnification0.25×0.16×
Optical stabilisationNoNo
Autofocus detailRing USM with full-time manual override; keep the shutter half-pressed after autofocus when adjusting focus manuallyArc Form Drive autofocus without full-time manual override according to The Digital Picture; Canon's manual requires the MF switch position for manual focus
Focus distance detail–Internal rear focusing; lens length remains constant and the front element does not rotate according to The Digital Picture
Stabilisation detail–No optical stabilisation according to The Digital Picture's exact-model specification table
Magnification detailAt 35 mm, EF12 II gives 0.65×–0.36× and EF25 II gives 1.14×–0.80×; both tubes are incompatible at 16 mm–
Design
Dust and moisture resistantYesNo
Filter diameter82 mm58 mm
Maximum diameter88.5 mm67.5 mm
Length127.5 mm48.5 mm
Weight790 g270 g
ControlsSeparate zoom and focus rings, AF/MF switch and distance windowAF/MF switch, focus ring, distance window, depth-of-field scale and infrared focus index
Zoom designConstant outer length with inner front-tube movement according to both reviews; the manual advises zooming before focusing–
Filter detailOne front filter may be fitted; the manual specifies the 82 mm Canon PL-C B polariser and removing the hood for adjustment–
Weather resistanceSealed construction and rubber mount ring; the manual recommends an 82 mm Canon PROTECT filter for best dust and water resistanceNo weather sealing according to The Digital Picture's exact-model specification table
Dimensions detailLength measured from the mount surface to the front; front and rear caps add 24 mm67.5 mm maximum diameter × 48.5 mm length; dimensions and 270 g weight are lens-only. Front and rear caps add 21.5 mm according to Canon's manual
Weight detailApproximately 790 g for the lens alone, excluding accessories, in Canon's instruction manual–
Lens hoodReversible EW-88D hood with release buttonEW-60 II reversible hood according to Canon's manual; optional according to The Digital Picture
In the boxLens, EW-88D hood, LP1222 case, E-82 II front cap, rear cap E and user manual–
Release detailCanon Camera Museum records October 2016 marketing; no first-sale day is statedCanon Camera Museum records November 1988 marketing; no first-sale day is given

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