Canon RF 15–35mm F2.8 L IS USM vs Canon RF 45mm F1.2 STM

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RF 15–35mm F2.8 L IS USM compared with RF 45mm F1.2 STM

	CanonRF 15–35mm F2.8 L IS USM	CanonRF 45mm F1.2 STM
Overview
Released
Released	September 2019	November 2025
Optics
Lens type
Lens type	Zoom	Prime
Focal length
Focal length	15–35 mm	45 mm
Maximum aperture
Maximum aperture	f/2.8	f/1.2
Minimum aperture
Minimum aperture	f/22	f/16
Optical construction
Optical construction	Sixteen elements in twelve groups	Nine elements in seven groups
Special elements
Special elements	Three glass-moulded aspherical elements and UD elements; SWC and ASC coatings; fluorine coatings on the front and rear elements	One plastic-moulded aspherical element (Canon USA)
Coatings
Coatings	–	Super Spectra coating
Aperture detail
Aperture detail	–	f/1.2–16
Diaphragm
Diaphragm	Nine blades with circular aperture	Nine aperture blades
Angle of view
Angle of view	–	43°35′ horizontal, 29°50′ vertical and 51°20′ diagonal on full frame
Mount and compatibility
Mounts
Mounts	Canon RF	Canon RF
Image circle
Image circle	Full frame	Full frame
Compatibility
Compatibility	Canon RF mount for full-frame and APS-C EOS R cameras; RF extenders not compatible	Canon EOS R cameras; full-frame image circle
Teleconverter support
Teleconverter support	–	Canon RF extenders not compatible
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	0.28 m	0.45 m
Maximum magnification
Maximum magnification	0.21×	0.13×
Optical stabilisation
Optical stabilisation	Yes	No
Autofocus detail
Autofocus detail	Nano USM motor; electronic manual focusing	Gear-type STM autofocus with magnetic focus-position detection; full-time electronic manual focus
Focus distance detail
Focus distance detail	Minimum focus 0.28 m	Minimum focusing distance 0.45 m; Canon does not separately specify AF/MF distances
Magnification detail
Magnification detail	Maximum 0.21× at 35 mm	–
Stabilisation detail
Stabilisation detail	Optical IS rated five stops with EOS R at 35 mm under CIPA standards	No optical image stabilisation (Canon USA)
Design
Dust and moisture resistant
Dust and moisture resistant	Yes	No
Filter diameter
Filter diameter	82 mm	67 mm
Maximum diameter
Maximum diameter	88.5 mm	78 mm
Length
Length	126.8 mm	75 mm
Weight
Weight	840 g	346 g (better)
Controls
Controls	Zoom, electronic manual-focus and customisable control rings; AF/MF and stabiliser on/off switches	Separate focus and clickable control rings; AF/MF switch; no iris ring or lens function button (Canon USA)
Filter detail
Filter detail	–	67 mm front screw-in filter thread
Zoom design
Zoom design	Barrel extends as the lens zooms from 35 mm towards 15 mm (Cameralabs)	–
Weather resistance
Weather resistance	Dust and water resistant construction; Canon states this cannot completely prevent dust or droplets entering	No dust or weather resistant construction (Canon USA)
Dimensions detail
Dimensions detail	Approximately 88.5 mm maximum diameter × 126.8 mm length, retracted	Approximately 78 mm maximum diameter × 75 mm length
Weight detail
Weight detail	Approximately 840 g lens	Approximately 346 g lens
Lens hood
Lens hood	EW-88F petal hood included	Optional ES-73B hood and LP1116 case; E-67 II front cap and Lens Dust Cap RF listed by Canon
In the box
In the box	Lens, E-82 II front cap, RF dust cap, EW-88F hood and LP1222 case	Front and rear lens caps (Amateur Photographer); hood not included
Release detail
Release detail	September 2019 marketed month in Canon Camera Museum	Canon 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 inferred