Canon RF 7-14mm F2.8-3.5L FISHEYE STM vs Canon RF-S 55–210mm F5–7.1 IS STM

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

Better figure, where one is clearly better

RF 7-14mm F2.8-3.5L FISHEYE STM compared with RF-S 55–210mm F5–7.1 IS STM
CanonRF 7-14mm F2.8-3.5L FISHEYE STMCanonRF-S 55–210mm F5–7.1 IS STM
Overview
ReleasedFebruary 2026March 2023
Optics
Lens typeZoomZoom
Focal length7–14 mm55–210 mm
Maximum aperturef/2.8–3.5f/5–7.1
Minimum aperturef/22–29f/22–32
Optical construction16 elements in 11 groupsEleven elements in eight groups
Special elementsFive UD and two replica aspherical elementsTwo UD elements and one plastic-moulded aspherical element; Super Spectra coating; no fluorine coating
CoatingsThree ASC coatings and Super Spectra; fluorine coating on the front element–
Aperture detailf/2.8–22 at 7 mm and f/3.5–29 at 14 mm; maker minimum-aperture figures use 1/3-stop displayMinimum f/22 at 55 mm and f/32 at 210 mm
DiaphragmNine aperture bladesSeven blades
Angle of viewHorizontal 190°–149°45′, vertical 190°–99°50′ and diagonal 190°–180° on full frame–
ProjectionCircular 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 frameAPS-C
CompatibilityCanon 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)Canon RF mount with APS-C image circle; full-frame EOS R bodies crop to APS-C; RF extenders and EF extension tubes not compatible
Teleconverter supportCanon RF extenders not compatible–
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.15 m (autofocus)0.73 m
Maximum magnification0.35× (autofocus)0.28×
Optical stabilisationNoYes
Autofocus detailLeadscrew-type STM focusing with position sensors; full-time manual focus; maker rear-focusing design maintains length during focusLead-screw STM autofocus and electronic manual focusing
Focus distance detailMaker specifies 0.15 m throughout the 7–14 mm range in autofocusMinimum focus 1 m at 55 mm and 0.73 m at 210 mm
Magnification detailMaximum 0.35× at 14 mm in autofocus, measured at the image centre; do not assume identical magnification across a fisheye imageMaximum 0.05× at 55 mm and 0.28× at 210 mm
Stabilisation detailNo lens optical IS; maker separately lists compatible camera IBIS at seven stops at the centre/14 mm under CIPA-2024 conditionsOptical IS rated 4.5 stops with EOS R10 at 210 mm under CIPA, yaw/pitch; coordinated IS rated seven stops with EOS R7 at 210 mm under CIPA, yaw/pitch
Video featuresCircular 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 resistantYesNo
Filter diameter–55 mm
Maximum diameter76.5 mm69 mm
Length109.4 mm92.9 mm
Weight476 g270 g (better)
ControlsZoom, focus and customisable control rings; AF/MF switch, function button and zoom lock/limit control (Digital Camera World)Combined focus/control ring and zoom ring; AF/MF and IS controlled through camera settings
Zoom designInternal zoom and focus retain the same physical lens length (Amateur Photographer; Digital Camera World)Extending zoom barrel
Filter detailNo 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 with mount gasket; Canon states attachment to a camera is needed and protection does not prevent all dust or water ingress; no waterproof/IP claimNo dust or moisture resistance
Dimensions detailApproximately 76.5 mm maximum diameter × 109.4 mm length, excluding detachable hoodApproximately 69 mm maximum diameter × 92.9 mm length, per Canon Japan and Camera Museum; UK table labels 135 mm as retracted, while Digital Camera World identifies 135 mm as extended
Weight detailApproximately 476 g lensApproximately 270 g lens
Lens hoodDetachable EW-76; remove for circular fisheye shooting to avoid the hood entering the image (Amateur Photographer; Digital Camera World)ET-60B hood and LP1016 pouch, sold separately
In the boxDrop-in clear filter includedLens, E-55 front cap, RF lens dust cap and user manual
Release detailCanon Japan specifies first sale on 20 February 2026; US announcement expected availability by the end of February, rather than the same exact regional dayMarch 2023 marketed month in Canon Camera Museum

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