Canon RF 24–105mm F4L IS USM vs Canon RF 7-14mm F2.8-3.5L FISHEYE STM

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

Better figure, where one is clearly better

RF 24–105mm F4L IS USM compared with RF 7-14mm F2.8-3.5L FISHEYE STM
CanonRF 24–105mm F4L IS USMCanonRF 7-14mm F2.8-3.5L FISHEYE STM
Overview
ReleasedOctober 2018February 2026
Optics
Lens typeZoomZoom
Focal length24–105 mm7–14 mm
Maximum aperturef/4f/2.8–3.5
Minimum aperturef/22f/22–29
Optical construction18 elements in 14 groups16 elements in 11 groups
Special elementsThree glass-moulded aspherical elements and one UD elementFive UD and two replica aspherical elements
CoatingsASC and Super Spectra anti-reflection coatings; fluorine coatings on front and rearmost surfacesThree ASC coatings and Super Spectra; fluorine coating on the front element
Aperture detail–f/2.8–22 at 7 mm and f/3.5–29 at 14 mm; maker minimum-aperture figures use 1/3-stop display
DiaphragmNine blades with circular apertureNine aperture blades
Angle of viewFull-frame horizontal 74°–19°20′, vertical 53°–13° and diagonal 84°–23°20′Horizontal 190°–149°45′, vertical 190°–99°50′ and diagonal 190°–180° on full frame
Projection–Circular 190° fisheye at 7 mm and frame-filling diagonal 180° fisheye at 14 mm on full frame; circular mode uses equidistant projection; neither is rectilinear
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameFull frame
CompatibilityCanon EOS R cameras; full-frame image circle. RF optical model distinct from EF24–105mmF4L generations and RF24–105mmF4–7.1STMCanon EOS R full-frame or APS-C cameras; APS-C cannot show the complete circular image and uses approximately 8.7 mm for diagonal coverage (Digital Camera World)
Teleconverter supportCanon RF extenders not compatible; UK maker also lists EF12 II/EF25 II extension tubes incompatibleCanon RF extenders not compatible
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.45 m0.15 m (autofocus)
Maximum magnification0.24×0.35× (autofocus)
Optical stabilisationYesNo
Autofocus detailNano USM autofocus; electronic manual focusLeadscrew-type STM focusing with position sensors; full-time manual focus; maker rear-focusing design maintains length during focus
Focus distance detailMaker minimum focus distance 0.45 m; published AF/MF distinction absent and omittedMaker specifies 0.15 m throughout the 7–14 mm range in autofocus
Magnification detailMaker maximum magnification 0.24×; no unpublished AF/MF distinction inferredMaximum 0.35× at 14 mm in autofocus, measured at the image centre; do not assume identical magnification across a fisheye image
Stabilisation detailLens optical IS rated five stops, CIPA with EOS R at105mm in Canon Camera Museum; OpticalLimits obtained about3.5–4stops in its electronic-shutter test, a separate measured resultNo lens optical IS; maker separately lists compatible camera IBIS at seven stops at the centre/14 mm under CIPA-2024 conditions
Video featuresNano USM supports smooth movie autofocus; maker describes combined lens optical and camera electronic video IS separately from lens-only ratingCircular fisheye material can be converted to monoscopic 2D 180° VR with EOS VR Utility on supported cameras; not a stereoscopic dual-fisheye lens; conversion compatibility depends on body and recording format
Design
Dust and moisture resistantYesYes
Filter diameter77 mm–
Maximum diameter83.5 mm76.5 mm
Length107.3 mm109.4 mm
Weight700 g476 g (better)
ControlsZoom and focus rings, customisable lens control ring and zoom transport lock; OpticalLimits found no creeping during its testZoom, focus and customisable control rings; AF/MF switch, function button and zoom lock/limit control (Digital Camera World)
Zoom designExtending zoom barrel; maker physical dimensions measured retractedInternal zoom and focus retain the same physical lens length (Amateur Photographer; Digital Camera World)
Filter detail77 mm front filter threadNo front screw-in filter thread; rear Drop-in Filter A system; supplied clear filter and optional Drop-in Variable ND Filter A or Drop-in Circular Polarizing Filter A
Weather resistanceDust and moisture resistant construction, requiring attachment to a camera; cannot completely prevent dust/water ingress and is not waterproofDust and moisture resistant with mount gasket; Canon states attachment to a camera is needed and protection does not prevent all dust or water ingress; no waterproof/IP claim
Dimensions detailApproximately83.5mm maximum diameter ×107.3mm length in retracted stateApproximately 76.5 mm maximum diameter × 109.4 mm length, excluding detachable hood
Weight detailApproximately700g lensApproximately 476 g lens
Lens hoodEW-83NDetachable EW-76; remove for circular fisheye shooting to avoid the hood entering the image (Amateur Photographer; Digital Camera World)
In the boxUK maker store lists lens, E-77 II cap, Lens Dust Cap RF, EW-83N hood, LP1319 case and user manualDrop-in clear filter included
Release detailCanon Japan FAQ gives first sale 25 October 2018, consistent with Camera Museum marketed month; no exact UK on-sale day inferred. Maker Japan offers a control-ring de-click service, so the launch DCW statement that it cannot be de-clicked is not treated as current service availability. Co-sold RF standard zooms are alternatives, not inferred successor linksCanon Japan specifies first sale on 20 February 2026; US announcement expected availability by the end of February, rather than the same exact regional day

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