Canon RF 135mm F1.8 L 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 135mm F1.8 L IS USM compared with RF 7-14mm F2.8-3.5L FISHEYE STM
CanonRF 135mm F1.8 L IS USMCanonRF 7-14mm F2.8-3.5L FISHEYE STM
Overview
ReleasedJanuary 2023February 2026
Optics
Lens typePrimeZoom
Focal length135 mm7–14 mm
Maximum aperturef/1.8f/2.8–3.5
Minimum aperturef/22f/22–29
Optical constructionSeventeen elements in twelve groups16 elements in 11 groups
Special elementsThree UD elementsFive UD and two replica aspherical elements
CoatingsASC and Super Spectra coatings; front-element fluorine coatingThree 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 viewApproximately 18° diagonalHorizontal 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 RF mount for full-frame and APS-C EOS R camerasCanon 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 1.4× and 2× extenders not compatibleCanon RF extenders not compatible
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.7 m0.15 m (autofocus)
Maximum magnification0.26×0.35× (autofocus)
Optical stabilisationYesNo
Autofocus detailNano USM; full-time manual focusing supported in One Shot AF and Servo AF on compatible EOS R-series camerasLeadscrew-type STM focusing with position sensors; full-time manual focus; maker rear-focusing design maintains length during focus
Focus distance detailMinimum focus 0.70 m; no distance limiter switchMaker specifies 0.15 m throughout the 7–14 mm range in autofocus
Magnification detailMaximum 0.26×; approximately 135 × 91 mm field of view at minimum focusMaximum 0.35× at 14 mm in autofocus, measured at the image centre; do not assume identical magnification across a fisheye image
Stabilisation detailUp to 5.5 stops optical IS with EOS R; up to 8 stops coordinated with EOS R3 IBIS, under CIPA yaw/pitch testingNo lens optical IS; maker separately lists compatible camera IBIS at seven stops at the centre/14 mm under CIPA-2024 conditions
Video featuresFocus breathing correction available on compatible camerasCircular 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 diameter82 mm–
Maximum diameter89.2 mm76.5 mm
Length130.3 mm109.4 mm
Weight935 g476 g (better)
ControlsSeparate electronic manual-focus and customisable control rings; two customisable lens function buttons default to AF stop; AF/MF and stabiliser switchesZoom, focus and customisable control rings; AF/MF switch, function button and zoom lock/limit control (Digital Camera World)
Zoom design–Internal zoom and focus retain the same physical lens length (Amateur Photographer; Digital Camera World)
Filter detail–No 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 with rubber mount seal; front-element fluorine coatingDust 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 detailApproximately 89.2 mm maximum diameter × 130.3 mm lengthApproximately 76.5 mm maximum diameter × 109.4 mm length, excluding detachable hood
Weight detailApproximately 935 g lensApproximately 476 g lens
Lens hoodET-88B hood included (Canon UK store)Detachable EW-76; remove for circular fisheye shooting to avoid the hood entering the image (Amateur Photographer; Digital Camera World)
In the boxLens, ET-88B hood, LP1319 lens case, E-82 II front cap and RF dust cap (Canon UK store)Drop-in clear filter included
Release detailJanuary 2023 marketed month in Canon Camera MuseumCanon 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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