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Canon RF 24–240mm F4–6.3 IS USM vs Canon RF 75–300mm F4–5.6

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

Better figure, where one is clearly better

CanonRF 24–240mm F4–6.3 IS USMCanonRF 75–300mm F4–5.6
Overview
ReleasedSeptember 2019May 2025
Optics
Lens typeZoomZoom
Focal length24–240 mm75–300 mm
Maximum aperturef/4–6.3f/4–5.6
Minimum aperturef/22–36f/32–45
Optical construction21 elements in 15 groupsThirteen elements in nine groups; Canon states the optical design is adapted from the EF 75–300mm F4–5.6 III
Coatings–Super Spectra; no fluorine coating
Aperture detailMinimum f/22 at 24 mm and f/36 at 240 mm in Canon Japan specifications; UK table lists 22–38 (36); clickless one-eighth-stop aperture control for moviesMaximum f/4 at 75 mm and f/5.6 at 300 mm; minimum f/32 and f/45 respectively
DiaphragmSeven blades, circular apertureSeven blades
Angle of view–Full-frame diagonal 32°11′–8°15′; horizontal 27°–6°50′; vertical 18°11′–4°35′
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 RF mount for full-frame and APS-C EOS R cameras; 120–480 mm equivalent field of view on Canon APS-C
Teleconverter support–Not compatible with RF extenders (The-Digital-Picture)
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.5 m1.5 m
Maximum magnification0.26×0.25×
Optical stabilisationYesNo
Autofocus detailNano USM autofocus and electronic manual focusingDC motor autofocus; no full-time manual focus override (Digital Camera World)
Focus distance detailMinimum 0.5 m at 24 mm, per Canon; 0.78 m at 240 mm reported by Cameralabs1.5 m minimum focus; front element and focus ring rotate during focusing (Digital Camera World and The-Digital-Picture)
Magnification detailMaximum 0.26× at 240 mm0.06× at 75 mm and 0.25× at 300 mm
Stabilisation detailOptical IS rated five stops with EOS R at 240 mm under CIPA; Dynamic IS for movies, reported by OpticalLimitsNo lens optical stabilisation
Video features–Substantial focus breathing in The-Digital-Picture's test
Design
Dust and moisture resistantNo–
Filter diameter72 mm58 mm
Maximum diameter80.4 mm71.2 mm
Length122.5 mm146.1 mm
Weight750 g507 g
ControlsCombined focus/control ring with selector, zoom ring with lock at 24 mm and IS on/off switchManual focus and zoom rings, AF/MF switch; no custom control ring (The-Digital-Picture)
Zoom designExtending two-section barrel; lockable zoom ring with 100° rotationExtending zoom barrel; further extension and front rotation during focusing (Digital Camera World)
Filter detail–58 mm front thread rotates during focusing
Weather resistanceNo dust or moisture resistanceCanon UK's table lists dust/moisture resistance, but Digital Camera World and The-Digital-Picture both report no weather sealing
Dimensions detailApproximately 80.4 mm maximum diameter × 122.5 mm length, retracted71.2 mm maximum diameter × 146.1 mm retracted length
Weight detailApproximately 750 g lensApproximately 507 g lens
Lens hoodEW-78F hood and LP1219 pouch, neither bundledOptional ET-60 hood, not included
In the boxLens, E-72 II front cap, RF lens dust cap and user manual kitLens, E-58 II lens cap, RF dust cap and user manual
Release detailSeptember 2019 marketed month in Canon Camera MuseumMay 2025 release confirmed retrospectively by Canon's February 2026 press release and Canon Camera Museum

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