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Canon EF 70–200mm f/2.8L IS III USM vs Canon EF 85mm f/1.2L USM

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

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CanonEF 70–200mm f/2.8L IS III USMCanonEF 85mm f/1.2L USM
Overview
ReleasedSeptember 2018September 1989
Optics
Lens typeZoomPrime
Focal length70–200 mm85 mm
Maximum aperturef/2.8f/1.2
Minimum aperturef/32f/16
Optical construction23 elements in 19 groups; retains the optical layout of the EF 70–200mm f/2.8L IS II USMEight elements in seven groups; floating optical system
Special elementsOne fluorite and five UD elementsOne aspherical element and two high-refraction elements according to Canon
CoatingsAir Sphere Coating and revised optical coatings; fluorine coating on front and rear element surfaces–
DiaphragmEight blades with a circular apertureEight blades; non-rounded according to The Digital Picture
Angle of viewDiagonal 34°–12°; vertical 19°30′–7°; horizontal 29°–10°28°30′ diagonal, 24° horizontal and 16° vertical according to Canon's manual
Mount and compatibility
MountsCanon EFCanon EF
Image circleFull frameFull frame
CompatibilityCanon EF mount full-frame and APS-C camerasCanon EF cameras with full-frame or APS-C sensors
Teleconverter supportEF1.4X III gives 98–280 mm f/4 and 0.30× maximum magnification; EF2X III gives 140–400 mm f/5.6 and 0.44×; autofocus remains available but is slower–
Focus and stabilisation
AutofocusYesYes
Minimum focus distance1.2 m0.95 m
Maximum magnification0.21×0.11×
Optical stabilisationYesNo
Autofocus detailRing-type USM; full-time manual override after One-Shot autofocus while holding the shutter button halfwayUSM autofocus; The Digital Picture reports no focus-distance transmission for E-TTL II flash metering
Focus distance detailInternal focusing; maximum 0.21× magnification at 200 mmElectronically driven manual focusing requires the camera to be powered on; front element moves during focusing according to The Digital Picture
Stabilisation detailUp to 3.5 stops under CIPA testing at 200 mm on an EOS-1D X Mark II; Mode 1 for still subjects and Mode 2 for panning; Canon notes tripod results depend on the tripod and shooting conditionsNo optical stabilisation according to The Digital Picture's exact-model specifications
Design
Dust and moisture resistantYesNo
Filter diameter77 mm72 mm
Maximum diameter88.8 mm91.5 mm
Length199 mm84 mm
Weight1,480 g1,025 g
ControlsAF/MF, IS on/off and IS mode switches; focus limiter selects 1.2 m–infinity or 2.5 m–infinityAF/MF switch, focus ring, distance window and depth-of-field markings
Filter detail–Front screw-in filter; Canon's manual permits one filter at a time
Zoom designInternal zooming maintains physical length (Digital Camera World)–
Weather resistanceDust- and moisture-resistant construction with a rubber gasket at the mountNot weather sealed according to The Digital Picture's exact-model specifications
Dimensions detail88.8 mm maximum diameter × 199 mm length, measured from the mount to the lens front; add 24.2 mm for front and rear caps91.5 mm maximum diameter × 84 mm length; 1,025 g lens-only. Canon's manual gives a further 21.5 mm with both caps fitted
Weight detailApproximately 1,480 g lens only according to Canon's instruction manual, UK store and Camera Museum; a Canon USA one-page specification chart instead lists approximately 1,440 g–
Tripod mountIncluded removable rotating B (W II) tripod mount ring; detach the lens from the camera before removing the collar–
Lens hoodET-87, with release button and reversible mounting for storageES-79 II according to Canon's manual; button-release fitting and reversible for storage
In the boxET-87 hood and LZ1326 lens case according to the UK store; tripod mount ring included according to Canon's instruction manual–
Release detailMarketed in September 2018 according to Canon Camera Museum; Canon USA's 7 June announcement had scheduled US shipping for August 2018Canon Camera Museum records September 1989 marketing; no first-sale day is given

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