Canon RF 20mm F1.4 L VCM vs Canon RF-S 14–30mm F4–6.3 IS STM PZ

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

Better figure, where one is clearly better

RF 20mm F1.4 L VCM compared with RF-S 14–30mm F4–6.3 IS STM PZ
CanonRF 20mm F1.4 L VCMCanonRF-S 14–30mm F4–6.3 IS STM PZ
Overview
ReleasedApril 2025April 2025
Optics
Lens typePrimeZoom
Focal length20 mm14–30 mm
Maximum aperturef/1.4f/4–6.3
Minimum aperturef/16f/22–38
Optical constructionFifteen elements in eleven groups10 elements in nine groups
Coatings–Super Spectra coating
Aperture detail–Maker minimum aperture f/22 at14mm and f/38 at30mm using half-stop display; Ken Rockwell reports f/36 at30mm, while Digital Camera World lists f/32. Main values retain the maker’s explicitly stated display convention
Special elementsOne Super UD, two UD, one BR and two glass-moulded aspherical elements; ASC, SWC and Super Spectra coatings; front fluorine coating–
DiaphragmEleven blades with circular apertureSeven blades
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameAPS-C
CompatibilityCanon RF mount for full-frame and APS-C EOS R cameras; RF extenders not compatible. Iris ring provides movie aperture control; Canon lists EOS R, RP, Ra, R3, R5, R6, R6 Mark II, R7, R8, R10, R50, R100 and R5 C as unable to set still-photo aperture with this ring even with their latest firmwareCanon RF mount, APS-C image circle; UK maker lists compatible full-frame EOS R bodies with crop restrictions
Image circle detail–Physical14–30mm focal length;22.4–48mm equivalent angle of view on Canon APS-C, distinct from any additional movie crop
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.2 m0.15 m
Maximum magnification0.19×0.38×
Optical stabilisationNoYes
Autofocus detailRear focusing system driven by a VCM motorSTM autofocus; combined electronic focus/control ring. No dedicated AF/MF switch
Focus distance detailMinimum focus 0.2 mMaker minimum focus0.15m throughout the zoom range; no AF/MF distinction published in the specification table
Magnification detailMaximum 0.19×0.17× at14mm and0.38× at30mm
Stabilisation detailNo optical stabiliser; Canon rates EOS R1 in-body stabilisation at 8 stops centrally and 5 stops in the corners under CIPA-2024 testingLens optical IS rated five stops at30mm with EOS R10, yaw/pitch under CIPA2024. Coordinated EOS R7 body/lens IS rated7.5 central and5.5 peripheral stops at30mm, yaw/pitch/roll. Ken Rockwell measured about2.5–2.7 stops on EOS R50 V held at arm’s length, a different test condition
Video features–Internal power zoom controlled by lens ring, compatible camera controls or remote smartphone/Bluetooth control; UK maker describes two-step variable speed and15 adjustable levels. Movie Digital IS is camera processing with additional crop, distinct from lens optical IS
Design
Dust and moisture resistantYesNo
Filter diameter67 mm58 mm
Maximum diameter76.5 mm69.6 mm
Length99.3 mm62 mm
Weight519 g181 g (better)
ControlsElectronic manual-focus, customisable control and smooth-action iris rings; iris Auto-position lock; customisable lens function button; AF/MF switchCombined focus/control ring and power zoom ring; no dedicated stabilisation switch
Zoom design–Non-extending internal motorised zoom maintains the lens’s62mm length
Filter detail67 mm front thread and rear filter holder; Canon specifies a single rear filter no thicker than 0.2 mm and recommends removing the holder when unused to avoid possible ghosting–
Weather resistanceDust and moisture resistant construction with mount rubber sealMaker FAQ explicitly states no dust or drip resistant construction
Dimensions detailApproximately 76.5 mm maximum diameter × 99.3 mm lengthApproximately69.6mm maximum diameter ×62mm length
Weight detailApproximately 519 g lensApproximately181g lens, per maker; Ken Rockwell measured179.1g
Lens hoodEW-73H hood includedEW-63C, sold separately
In the boxLens, E-67 II front cap, RF dust cap, EW-73H hood, LP1219 case, rear filter holder and user manualUK maker store lists lens, E-58 II front cap, Lens Dust Cap RF and user manual
Release detailApril 2025 marketed month in Canon Camera MuseumCanon USA scheduled the EOS R50 V kit containing this lens for April2025; Canon Indonesia’s22April2025 launch lists both kit and standalone lens for sale. Japan FAQ’s lateJuly2025 planned standalone release is a later regional date, not the earliest availability. No exact worldwide first-sale day inferred

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