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Canon EF 16–35mm f/2.8L III USM vs Canon EF 24mm f/1.4L USM

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/1.4L USM
Overview
ReleasedOctober 2016December 1997
Optics
Lens typeZoomPrime
Focal length16–35 mm24 mm
Maximum aperturef/2.8f/1.4
Minimum aperturef/22f/22
Optical constructionSixteen elements in eleven groupsEleven elements in nine groups; floating optical system
Special elementsTwo large-diameter glass-moulded aspherical elements, one ground aspherical element and two UD elementsGround and polished aspherical glass element and UD element according to Canon Camera Museum
CoatingsAir Sphere Coating and Subwavelength Structure Coating; front and rear fluorine coatings according to The Digital Picture–
DiaphragmNine circular bladesSeven-blade circular aperture 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 full-frame and APS-C cameras
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 manuallyRing USM with full-time manual focus; Canon's manual specifies One-Shot AF with the shutter button held halfway for manual adjustment after autofocus
Focus distance detail–Rear focusing system with non-rotating filter frame according to Canon Camera Museum
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 mm77 mm
Maximum diameter88.5 mm83.5 mm
Length127.5 mm77.4 mm
Weight790 g550 g
ControlsSeparate zoom and focus rings, AF/MF switch and distance windowAF/MF switch, focus ring, distance window 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 mm83.5 mm maximum diameter × 77.4 mm length; dimensions and 550 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 buttonSupplied reversible EW-83D II petal hood; LP1214 case according to Canon's manual and 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 December 1997 marketing; no first-sale day is given

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