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Canon EF 85mm f/1.2L II USM vs Canon RF 85mm F1.2 L USM

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

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CanonEF 85mm f/1.2L II USMCanonRF 85mm F1.2 L USM
Overview
ReleasedMarch 2006June 2019
Optics
Lens typePrimePrime
Focal length85 mm85 mm
Maximum aperturef/1.2f/1.2
Minimum aperturef/16f/16
Optical constructionEight elements in seven groups with a floating optical constructionThirteen elements in nine groups
Special elementsGround aspherical lens according to Canon JapanBR optics, UD and ground aspherical optics; ASC coating; front and rear fluorine coatings
CoatingsSuper Spectra coatings according to Canon UK–
DiaphragmEight blades with a circular electromagnetic diaphragmNine blades with circular aperture
Angle of view28°30′ diagonal, 24° horizontal and 16° vertical–
Mount and compatibility
MountsCanon EFCanon RF
Image circleFull frameFull frame
CompatibilityCanon EF cameras with full-frame or APS-C sensorsCanon RF mount for full-frame and APS-C EOS R cameras; extenders and EF12 II or EF25 II extension tubes not compatible
Teleconverter supportCanon EF1.4X II and EF2X II extenders cannot be used according to the manual–
Adaptor supportCanon UK confirms EOS M compatibility with the EF-EOS M Mount Adapter–
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.95 m0.85 m
Maximum magnification0.11×0.12×
Optical stabilisationNoNo
Autofocus detailUSM autofocus; Canon claims up to 1.8× the autofocus speed of the original EF 85mm f/1.2L USM using a faster CPU and revised algorithmsRing-type USM autofocus with electronic manual focusing and full-time manual override (Digital Camera World)
Focus distance detailElectronic manual focusing; full-time override after One-Shot AF while half-pressing the shutter, with camera and mode exceptions listed in the manual. The Digital Picture confirms camera power is required and the lens extends when focusingMinimum focus 0.85 m; internal focusing and focus limiter with 1.5 m to infinity setting (Digital Camera World)
Magnification detailCanon manual gives EF12 II tube magnification 0.15–0.25×, EF25 II 0.33–0.42× and 500D close-up lens 0.17–0.28×Maximum 0.12×
Stabilisation detailNo optical stabilisation according to ePHOTOzine's exact-model specificationNo optical stabiliser
Design
Dust and moisture resistantNoYes
Filter diameter72 mm82 mm
Maximum diameter91.5 mm103.2 mm
Length84 mm117.3 mm
Weight1,025 g1,195 g
ControlsAF/MF switch, focusing ring, distance window, infrared index and depth-of-field scaleElectronic manual-focus and customisable lens control rings; AF/MF and focus limiter switches (Digital Camera World)
Filter detailFront screw-in filter; one filter at a time according to Canon's manual–
Weather resistanceCanon Japan explicitly lists no dust or drip resistanceWeather-sealed construction with front and rear fluorine coatings
Dimensions detail91.5 mm maximum diameter × 84 mm length; 1,025 g lens-only. Add 21.5 mm with E-72U and rear cap, or 24.2 mm with E-72 II and rear capApproximately 103.2 mm maximum diameter × 117.3 mm length
Weight detail–Approximately 1195 g lens
Lens hoodSupplied ES-79 II clip-on hood; reversible for storage according to Canon's manualET-89 hood included
In the boxLens, E-72U front cap, Lens Dust Cap E, ES-79 II hood, LP1219 pouch and user manual according to Canon UKLens, E-82 II front cap, RF dust cap, ET-89 hood, LP1424 soft pouch and user manual
Release detailMarch 2006 sale month confirmed by Canon Camera Museum and Japan support. Canon explicitly identifies this model as the successor to the September 1989 EF 85mm f/1.2L USMJune 2019 marketed month in Canon Camera Museum

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