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Canon RF 45mm F1.2 STM vs Canon RF 85mm F1.4L VCM

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

Better figure, where one is clearly better

CanonRF 45mm F1.2 STMCanonRF 85mm F1.4L VCM
Overview
ReleasedNovember 2025September 2025
Optics
Lens typePrimePrime
Focal length45 mm85 mm
Maximum aperturef/1.2f/1.4
Minimum aperturef/16f/16
Optical constructionNine elements in seven groups14 elements in 10 groups
Special elementsOne plastic-moulded aspherical element (Canon USA)One UD and one glass-moulded aspherical element
CoatingsSuper Spectra coatingASC and Super Spectra; fluorine coating on the front element
Aperture detailf/1.2–16f/1.4–16 with stepless iris ring; no click-stop option (Amateur Photographer)
DiaphragmNine aperture blades11 circular aperture blades
Angle of view43°35′ horizontal, 29°50′ vertical and 51°20′ diagonal on full frame24° horizontal, 16° vertical and 28°30′ diagonal on full frame
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameFull frame
CompatibilityCanon EOS R cameras; full-frame image circleCanon EOS R cameras; full-frame image circle; stills iris-ring support is body/firmware dependent
Teleconverter supportCanon RF extenders not compatibleCanon RF extenders not compatible
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.45 m0.75 m
Maximum magnification0.13×0.12×
Optical stabilisationNoNo
Autofocus detailGear-type STM autofocus with magnetic focus-position detection; full-time electronic manual focusVoice Coil Motor autofocus; electronic manual focus; maker notes movement/noise in unpowered internal VCM components is normal
Focus distance detailMinimum focusing distance 0.45 m; Canon does not separately specify AF/MF distances–
Stabilisation detailNo optical image stabilisation (Canon USA)No lens optical IS; maker separately lists camera IBIS CIPA-2024 performance of eight stops at the centre and seven at the corners under its camera/test conditions
Video features–Optically suppressed focus breathing and stepless iris control; UK maker footnote excludes stills iris-ring operation on EOS R/RP/Ra/R3/R5/R6/R6 Mark II/R7/R8/R10/R50/R100/R5 C even with current firmware
Design
Dust and moisture resistantNoYes
Filter diameter67 mm67 mm
Maximum diameter78 mm76.5 mm
Length75 mm99.3 mm
Weight346 g636 g
ControlsSeparate focus and clickable control rings; AF/MF switch; no iris ring or lens function button (Canon USA)Customisable control ring, focus ring, iris ring with Auto-position lock, function button and AF/MF switch (Amateur Photographer)
Filter detail67 mm front screw-in filter thread67 mm front screw-in filter thread; compatible Canon 67 mm Protect and PL-C B circular polarising filters
Weather resistanceNo dust or weather resistant construction (Canon USA)Dust and moisture resistant with mount gasket; Canon states protection requires attachment to a camera and cannot prevent all dust or water ingress; no waterproof/IP rating inferred
Dimensions detailApproximately 78 mm maximum diameter × 75 mm lengthApproximately 76.5 mm maximum diameter × 99.3 mm length
Weight detailApproximately 346 g lensApproximately 636 g lens
Lens hoodOptional ES-73B hood and LP1116 case; E-67 II front cap and Lens Dust Cap RF listed by CanonET-73C; maker lists E-67 II cap, Lens Dust Cap RF and LP1219 pouch as accessories
In the boxFront and rear lens caps (Amateur Photographer); hood not included–
Release detailCanon Japan's 14 November 2025 notice confirms first sale on 28 November 2025; Photography Blog instead reports availability from 20 November without a matching regional maker day, so no UK date is inferredCanon Japan specifies first sale on 27 September 2025; no UK first-sale day inferred

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