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Canon RF 15–30mm F4.5–6.3 IS STM 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 15–30mm F4.5–6.3 IS STMCanonRF 75–300mm F4–5.6
Overview
ReleasedAugust 2022May 2025
Optics
Lens typeZoomZoom
Focal length15–30 mm75–300 mm
Maximum aperturef/4.5–6.3f/4–5.6
Minimum aperturef/22–32f/32–45
Optical construction13 elements in 11 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
Special elementsOne plastic-moulded aspherical and two UD elements; Super Spectra coating; no fluorine coating–
Aperture detailMinimum f/22 at 15 mm and f/32 at 30 mmMaximum f/4 at 75 mm and f/5.6 at 300 mm; minimum f/32 and f/45 respectively
DiaphragmSeven bladesSeven 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 and EF extension tubes 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 distance0.128 m (manual focus)1.5 m
Maximum magnification0.52× (manual focus)0.25×
Optical stabilisationYesNo
Autofocus detailSTM autofocus and electronic manual focusingDC motor autofocus; no full-time manual focus override (Digital Camera World)
Focus distance detailAutofocus minimum 0.28 m across the zoom range; manual-focus minimum 0.128 m at 15 mm and 0.28 m at 20–30 mm1.5 m minimum focus; front element and focus ring rotate during focusing (Digital Camera World and The-Digital-Picture)
Magnification detailAutofocus 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 mm0.06× at 75 mm and 0.25× at 300 mm
Stabilisation detailOptical 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/pitchNo lens optical stabilisation
Video features–Substantial focus breathing in The-Digital-Picture's test
Design
Dust and moisture resistantNo–
Filter diameter67 mm58 mm
Maximum diameter76.6 mm71.2 mm
Length88.4 mm146.1 mm
Weight390 g507 g
ControlsCombined focus/control ring with selector, zoom ring and IS on/off switchManual focus and zoom rings, AF/MF switch; no custom control ring (The-Digital-Picture)
Zoom designBarrel extends towards the 15 mm settingExtending 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 76.6 mm maximum diameter × 88.4 mm length, retracted71.2 mm maximum diameter × 146.1 mm retracted length
Weight detailApproximately 390 g lensApproximately 507 g lens
Lens hoodEW-73E hood and LP1116 pouch, sold separatelyOptional ET-60 hood, not included
In the boxLens, E-67 II front cap, RF lens dust cap and user manualLens, E-58 II lens cap, RF dust cap and user manual
Release detailAugust 2022 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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