Canon RF 15–30mm F4.5–6.3 IS STM vs Canon RF 45mm F1.2 STM

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RF 15–30mm F4.5–6.3 IS STM compared with RF 45mm F1.2 STM

	CanonRF 15–30mm F4.5–6.3 IS STM	CanonRF 45mm F1.2 STM
Overview
Released
Released	August 2022	November 2025
Optics
Lens type
Lens type	Zoom	Prime
Focal length
Focal length	15–30 mm	45 mm
Maximum aperture
Maximum aperture	f/4.5–6.3	f/1.2
Minimum aperture
Minimum aperture	f/22–32	f/16
Optical construction
Optical construction	13 elements in 11 groups	Nine elements in seven groups
Special elements
Special elements	One plastic-moulded aspherical and two UD elements; Super Spectra coating; no fluorine coating	One plastic-moulded aspherical element (Canon USA)
Coatings
Coatings	–	Super Spectra coating
Aperture detail
Aperture detail	Minimum f/22 at 15 mm and f/32 at 30 mm	f/1.2–16
Diaphragm
Diaphragm	Seven blades	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	Full-frame Canon RF mount; compatible with APS-C EOS R bodies; RF extenders and EF extension tubes 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	0.128 m (manual focus)	0.45 m
Maximum magnification
Maximum magnification	0.52× (manual focus)	0.13×
Optical stabilisation
Optical stabilisation	Yes	No
Autofocus detail
Autofocus detail	STM autofocus and electronic manual focusing	Gear-type STM autofocus with magnetic focus-position detection; full-time electronic manual focus
Focus distance detail
Focus distance detail	Autofocus minimum 0.28 m across the zoom range; manual-focus minimum 0.128 m at 15 mm and 0.28 m at 20–30 mm	Minimum focusing distance 0.45 m; Canon does not separately specify AF/MF distances
Magnification detail
Magnification detail	Autofocus maximum 0.09× at 15 mm, 0.11× at 20 mm and 0.16× at 30 mm; manual-focus maximum 0.52× at 15 mm, 0.11× at 20 mm and 0.16× at 30 mm	–
Stabilisation detail
Stabilisation detail	Optical IS rated 5.5 stops with EOS R at 30 mm under CIPA, yaw/pitch; coordinated IS rated seven stops with EOS R5 at 30 mm under CIPA, yaw/pitch	No optical image stabilisation (Canon USA)
Design
Dust and moisture resistant
Dust and moisture resistant	No	No
Filter diameter
Filter diameter	67 mm	67 mm
Maximum diameter
Maximum diameter	76.6 mm	78 mm
Length
Length	88.4 mm	75 mm
Weight
Weight	390 g	346 g (better)
Controls
Controls	Combined focus/control ring with selector, zoom ring and IS on/off switch	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 towards the 15 mm setting	–
Weather resistance
Weather resistance	No dust or moisture resistance	No dust or weather resistant construction (Canon USA)
Dimensions detail
Dimensions detail	Approximately 76.6 mm maximum diameter × 88.4 mm length, retracted	Approximately 78 mm maximum diameter × 75 mm length
Weight detail
Weight detail	Approximately 390 g lens	Approximately 346 g lens
Lens hood
Lens hood	EW-73E hood and LP1116 pouch, sold separately	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-67 II front cap, RF lens dust cap and user manual	Front and rear lens caps (Amateur Photographer); hood not included
Release detail
Release detail	August 2022 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