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Canon RF 24–50mm F4.5–6.3 IS STM vs Canon RF 28–70mm F2.8 IS STM

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

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CanonRF 24–50mm F4.5–6.3 IS STMCanonRF 28–70mm F2.8 IS STM
Overview
ReleasedApril 2023September 2024
Optics
Lens typeZoomZoom
Focal length24–50 mm28–70 mm
Maximum aperturef/4.5–6.3f/2.8
Minimum aperturef/22–32f/22
Optical constructionEight elements in eight groups15 elements in 12 groups
Special elementsTwo plastic-moulded aspherical elements; Super Spectra coating; no fluorine coatingTwo UD elements and two GMo aspherical elements
Coatings–Super Spectra; no fluorine coating, per UK maker specification
Aperture detailMinimum f/22 at 24 mm and f/32 at 50 mm–
DiaphragmSeven blades, circular apertureNine blades
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameFull frame
CompatibilityFull-frame Canon RF mount; compatible with APS-C EOS R bodies; RF extenders and EF extension tubes not compatibleFull-frame image circle, Canon RF mount; incompatible with EF DSLRs and EOS M bodies. Canon RF extenders not compatible
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.3 m0.24 m (manual focus)
Maximum magnification0.19×0.24×
Optical stabilisationYesYes
Autofocus detailLead-screw STM autofocusLead-screw STM with magnetic motor-speed sensor and feedback control, electronic manual focus
Focus distance detailMinimum 0.30 m at 24 mm and 0.35 m at 50 mmMinimum focus at 28 mm is 0.27 m in AF or 0.24 m in MF; main figure retains the closer MF mode
Magnification detailMaximum 0.11× at 24 mm and 0.19× at 50 mmMaximum 0.24× at 70 mm in either AF or MF
Stabilisation detailOptical IS rated 4.5 stops on EOS R at 50 mm under CIPA, yaw/pitch; coordinated IS rated seven stops on EOS R5 at 50 mm in the UK specifications and on EOS R3 in Camera Museum, under CIPA, yaw/pitchLens 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
Video features–Smooth STM movie focusing; compatible camera breathing correction is digital. Cameralabs observes uncorrected focus breathing, more visible at 28 mm
Design
Dust and moisture resistantNoYes
Filter diameter58 mm67 mm
Maximum diameter69.6 mm76.5 mm
Length58 mm92.2 mm
Weight210 g490 g
ControlsCombined focus/control ring with AF/Control/MF selector, zoom ring and IS on/off switchShared focus/control ring with AF/control/MF selector; separate zoom ring and stabilisation switch
Zoom designRetractable barrel; lens must be extended for shootingRetractable 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 resistanceNo weather seals, reported by Dustin Abbott and Digital Camera WorldUK maker states dust/moisture resistance, including rubber mount seal; no waterproof rating published
Dimensions detailApproximately 69.6 mm maximum diameter × 58 mm length, retractedMaximum diameter 76.5 mm; 92.2 mm length when retracted
Weight detailApproximately 210 g lensUK 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
Lens hoodEW-63C hood and LP1014 pouch, neither bundledEW-73D, sold separately
In the boxLens, E-58 II front cap, RF lens dust cap and user manualUK maker store lists lens, E-67 II front cap, rear dust cap and user manual
Release detailApril 2023 marketed month in Canon Camera MuseumSeptember 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

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