Canon RF 28–70mm F2.8 IS STM vs Canon RF 85mm F1.4L VCM

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RF 28–70mm F2.8 IS STM compared with RF 85mm F1.4L VCM

	CanonRF 28–70mm F2.8 IS STM	CanonRF 85mm F1.4L VCM
Overview
Released
Released	September 2024	September 2025
Optics
Lens type
Lens type	Zoom	Prime
Focal length
Focal length	28–70 mm	85 mm
Maximum aperture
Maximum aperture	f/2.8	f/1.4
Minimum aperture
Minimum aperture	f/22	f/16
Optical construction
Optical construction	15 elements in 12 groups	14 elements in 10 groups
Special elements
Special elements	Two UD elements and two GMo aspherical elements	One UD and one glass-moulded aspherical element
Coatings
Coatings	Super Spectra; no fluorine coating, per UK maker specification	ASC and Super Spectra; fluorine coating on the front element
Aperture detail
Aperture detail	–	f/1.4–16 with stepless iris ring; no click-stop option (Amateur Photographer)
Diaphragm
Diaphragm	Nine blades	11 circular aperture blades
Angle of view
Angle of view	–	24° horizontal, 16° vertical and 28°30′ diagonal on full frame
Mount and compatibility
Mounts
Mounts	Canon RF	Canon RF
Image circle
Image circle	Full frame	Full frame
Compatibility
Compatibility	Full-frame image circle, Canon RF mount; incompatible with EF DSLRs and EOS M bodies. Canon RF extenders not compatible	Canon EOS R cameras; full-frame image circle; stills iris-ring support is body/firmware dependent
Teleconverter support
Teleconverter support	–	Canon RF extenders not compatible
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	0.24 m (manual focus)	0.75 m
Maximum magnification
Maximum magnification	0.24×	0.12×
Optical stabilisation
Optical stabilisation	Yes	No
Autofocus detail
Autofocus detail	Lead-screw STM with magnetic motor-speed sensor and feedback control, electronic manual focus	Voice Coil Motor autofocus; electronic manual focus; maker notes movement/noise in unpowered internal VCM components is normal
Focus distance detail
Focus distance detail	Minimum focus at 28 mm is 0.27 m in AF or 0.24 m in MF; main figure retains the closer MF mode	–
Magnification detail
Magnification detail	Maximum 0.24× at 70 mm in either AF or MF	–
Stabilisation detail
Stabilisation detail	Lens optical IS rated 5.5 central stops at 70 mm with EOS R8, yaw/pitch under CIPA2024. Japan current feature page rates coordinated EOS R6 Mark II body/lens IS 7.5 central and 7.0 peripheral stops, yaw/pitch/roll; original press release gives the same coordinated rating with EOS R1	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
Video features	Smooth STM movie focusing; compatible camera breathing correction is digital. Cameralabs observes uncorrected focus breathing, more visible at 28 mm	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 resistant
Dust and moisture resistant	Yes	Yes
Filter diameter
Filter diameter	67 mm	67 mm
Maximum diameter
Maximum diameter	76.5 mm	76.5 mm
Length
Length	92.2 mm	99.3 mm
Weight
Weight	490 g (better)	636 g
Controls
Controls	Shared focus/control ring with AF/control/MF selector; separate zoom ring and stabilisation switch	Customisable control ring, focus ring, iris ring with Auto-position lock, function button and AF/MF switch (Amateur Photographer)
Filter detail
Filter detail	–	67 mm front screw-in filter thread; compatible Canon 67 mm Protect and PL-C B circular polarising filters
Zoom design
Zoom design	Retractable barrel must be extended to 28 mm before shooting; length 92.2 mm stored, 112.4 mm at 28 mm and 138.9 mm at 70 mm, per Japan maker table	–
Weather resistance
Weather resistance	UK maker states dust/moisture resistance, including rubber mount seal; no waterproof rating published	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 detail
Dimensions detail	Maximum diameter 76.5 mm; 92.2 mm length when retracted	Approximately 76.5 mm maximum diameter × 99.3 mm length
Weight detail
Weight detail	UK current specification and store state 490 g; Japan current table, Camera Museum and original press release state 495 g. Main value follows UK specification; no undocumented regional variant inferred	Approximately 636 g lens
Lens hood
Lens hood	EW-73D, sold separately	ET-73C; maker lists E-67 II cap, Lens Dust Cap RF and LP1219 pouch as accessories
In the box
In the box	UK maker store lists lens, E-67 II front cap, rear dust cap and user manual	–
Release detail
Release detail	September 2024 marketed month in Canon Camera Museum; original maker release specifies 27 September in Japan. No exact worldwide first-sale day inferred; no successor link inferred across co-sold standard zooms	Canon Japan specifies first sale on 27 September 2025; no UK first-sale day inferred