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Canon RF 16mm F2.8 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 16mm F2.8 STMCanonRF 85mm F1.4L VCM
Overview
ReleasedOctober 2021September 2025
Optics
Lens typePrimePrime
Focal length16 mm85 mm
Maximum aperturef/2.8f/1.4
Minimum aperturef/22f/16
Optical constructionNine elements in seven groups14 elements in 10 groups
Special elementsOne aspherical elementOne UD and one glass-moulded aspherical element
Coatings–ASC and Super Spectra; fluorine coating on the front element
Aperture detail–f/1.4–16 with stepless iris ring; no click-stop option (Amateur Photographer)
DiaphragmSeven blades11 circular aperture blades
Angle of view–24° horizontal, 16° vertical and 28°30′ diagonal on full frame
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameFull frame
CompatibilityCanon RF mount, full-frame image circle; RF extenders and EF extension tubes not compatibleCanon EOS R cameras; full-frame image circle; stills iris-ring support is body/firmware dependent
Teleconverter support–Canon RF extenders not compatible
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.13 m0.75 m
Maximum magnification0.26×0.12×
Optical stabilisationNoNo
Autofocus detailSTM autofocus and electronic manual focusingVoice Coil Motor autofocus; electronic manual focus; maker notes movement/noise in unpowered internal VCM components is normal
Focus distance detailMinimum focusing distance 0.13 m; inner barrel extends when powered and during focusing–
Magnification detailMaximum 0.26× reproduction–
Stabilisation detailNo optical IS, per OpticalLimits and Cameralabs; compatible camera stabilisation is separateNo 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 diameter43 mm67 mm
Maximum diameter69.2 mm76.5 mm
Length40.2 mm99.3 mm
Weight165 g636 g
ControlsCombined focus/control ring and function switch; Cameralabs notes manual focus also needs selecting in camera settingsCustomisable control ring, focus ring, iris ring with Auto-position lock, function button and AF/MF switch (Amateur Photographer)
Filter detailOnly one filter at a time; Canon 250D/500D close-up lenses and PL-C B circular polariser not compatible67 mm front screw-in filter thread; compatible Canon 67 mm Protect and PL-C B circular polarising filters
Weather resistanceOpticalLimits and Cameralabs report no weather sealingDust 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 69.2 mm maximum diameter × 40.2 mm length, retractedApproximately 76.5 mm maximum diameter × 99.3 mm length
Weight detailApproximately 165 g lensApproximately 636 g lens
Lens hoodEW-65C, sold separatelyET-73C; maker lists E-67 II cap, Lens Dust Cap RF and LP1219 pouch as accessories
In the boxLens, EF-43 front cap, RF lens dust cap and user manual kit–
Release detailOctober 2021 marketed month in Canon Camera MuseumCanon Japan specifies first sale on 27 September 2025; no UK first-sale day inferred

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