Canon RF 24mm F1.8 MACRO IS STM vs Canon RF 45mm F1.2 STM

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

Better figure, where one is clearly better

RF 24mm F1.8 MACRO IS STM compared with RF 45mm F1.2 STM
CanonRF 24mm F1.8 MACRO IS STMCanonRF 45mm F1.2 STM
Overview
ReleasedAugust 2022November 2025
Optics
Lens typePrimePrime
Focal length24 mm45 mm
Maximum aperturef/1.8f/1.2
Minimum aperturef/22f/16
Macro lensYes–
Optical construction11 elements in nine groupsNine elements in seven groups
Special elementsOne plastic-moulded aspherical and one UD element; Super Spectra coating; no fluorine coatingOne plastic-moulded aspherical element (Canon USA)
Coatings–Super Spectra coating
Aperture detail–f/1.2–16
DiaphragmNine blades, circular apertureNine aperture blades
Angle of view–43°35′ horizontal, 29°50′ vertical and 51°20′ diagonal on full frame
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameFull frame
CompatibilityFull-frame Canon RF mount; compatible with APS-C EOS R bodies; RF extenders not compatibleCanon EOS R cameras; full-frame image circle
Teleconverter support–Canon RF extenders not compatible
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.14 m0.45 m
Maximum magnification0.5×0.13×
Optical stabilisationYesNo
Autofocus detailSTM autofocus and electronic manual focusing; inner barrel extends towards closer focusGear-type STM autofocus with magnetic focus-position detection; full-time electronic manual focus
Focus distance detail–Minimum focusing distance 0.45 m; Canon does not separately specify AF/MF distances
Magnification detailHalf-life-size 0.5× maximum reproduction, not 1:1–
Stabilisation detailOptical IS rated five stops with EOS R under CIPA, yaw/pitch; coordinated IS rated 6.5 stops with EOS R5 under CIPA, yaw/pitchNo optical image stabilisation (Canon USA)
Design
Dust and moisture resistantNoNo
Filter diameter52 mm67 mm
Maximum diameter74.4 mm78 mm
Length63.1 mm75 mm
Weight270 g (better)346 g
ControlsSeparate focus and customisable control rings, AF/MF switch and IS on/off switchSeparate focus and clickable control rings; AF/MF switch; no iris ring or lens function button (Canon USA)
Filter detail–67 mm front screw-in filter thread
Weather resistanceNo dust or moisture resistanceNo dust or weather resistant construction (Canon USA)
Dimensions detailApproximately 74.4 mm maximum diameter × 63.1 mm length, retractedApproximately 78 mm maximum diameter × 75 mm length
Weight detailApproximately 270 g lensApproximately 346 g lens
Lens hoodEW-65B hood and LP1016 pouch, sold separatelyOptional ES-73B hood and LP1116 case; E-67 II front cap and Lens Dust Cap RF listed by Canon
In the boxLens, E-52 II front cap, RF lens dust cap and user manualFront and rear lens caps (Amateur Photographer); hood not included
Release detailAugust 2022 marketed month in Canon Camera MuseumCanon 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

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