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Canon RF 20mm F1.4 L VCM vs Canon RF 24-105mm F2.8 L IS USM Z

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

Better figure, where one is clearly better

CanonRF 20mm F1.4 L VCMCanonRF 24-105mm F2.8 L IS USM Z
Overview
ReleasedApril 2025November 2023
Optics
Lens typePrimeZoom
Focal length20 mm24–105 mm
Maximum aperturef/1.4f/2.8
Minimum aperturef/16f/22
Optical constructionFifteen elements in eleven groups23 elements in 18 groups
Special elementsOne Super UD, two UD, one BR and two glass-moulded aspherical elements; ASC, SWC and Super Spectra coatings; front fluorine coatingThree aspherical and four UD elements
Coatings–Air Sphere Coating; fluorine front-element coating
DiaphragmEleven blades with circular aperture11 blades
Angle of view–Diagonal 84°–23°20′; horizontal 74°–19°20′; vertical 53°–13°
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frame–
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; Digital Camera World identifies full-frame coverage
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.2 m0.45 m
Maximum magnification0.19×0.29×
Optical stabilisationNoYes
Autofocus detailRear focusing system driven by a VCM motorTwo Nano USM motors and floating-focus system
Focus distance detailMinimum focus 0.2 mMinimum focusing distance 0.45 m throughout the zoom range
Magnification detailMaximum 0.19×Maximum 0.08× at 24 mm or 0.29× at 105 mm; Digital Camera World's table incorrectly prints 0.8× at 24 mm, so the maker's 0.08× is retained
Stabilisation detailNo optical stabiliser; Canon rates EOS R1 in-body stabilisation at 8 stops centrally and 5 stops in the corners under CIPA-2024 testingMaker 5.5 stops on EOS R at 105 mm, CIPA yaw/pitch; coordinated lens/body stabilisation up to 8 stops on EOS R3 at 105 mm under the same test directions
Video features–Focus-breathing suppression; optional PZ-E2 power-zoom adapter is separate and required for powered zoom
Design
Dust and moisture resistantYesYes
Filter diameter67 mm82 mm
Maximum diameter76.5 mm88.5 mm
Length99.3 mm199 mm
Weight519 g1,330 g
ControlsElectronic manual-focus, customisable control and smooth-action iris rings; iris Auto-position lock; customisable lens function button; AF/MF switchIris ring and two customisable lens-function buttons; three IS modes for stationary subjects, panning or unpredictable movement
Zoom design–Fixed-length internal zoom
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 sealDust- and drip-resistant construction; no published IP rating
Dimensions detailApproximately 76.5 mm maximum diameter × 99.3 mm length–
Weight detailApproximately 519 g lensCanon Camera Museum gives approximately 1330 g; Canon Asia lists 1430 g without stating the accessory basis, and Digital Camera World gives 1350 g. Museum figure used; no inferred accessory-excluded weight
Tripod mount–Detachable without a special tool
Lens hoodEW-73H hood includedEW-88E included
In the boxLens, E-67 II front cap, RF dust cap, EW-73H hood, LP1219 case, rear filter holder and user manualLens Cap E-82 II, Lens Dust Cap RF, EW-88E hood and LZ1326 (B) bag on Canon Asia's page
Release detailApril 2025 marketed month in Canon Camera MuseumCanon Camera Museum records first marketing in November 2023; no precise retail day inferred

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