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Canon RF 600mm F11 IS STM 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

CanonRF 600mm F11 IS STMCanonRF 7-14mm F2.8-3.5L FISHEYE STM
Overview
ReleasedJuly 2020February 2026
Optics
Lens typePrimeZoom
Focal length600 mm7–14 mm
Maximum aperturef/11f/2.8–3.5
Minimum aperturef/11f/22–29
Optical constructionTen elements in seven groups16 elements in 11 groups
Special elementsGapless dual-layer diffractive optical elementFive UD and two replica aspherical elements
Coatings–Three ASC coatings and Super Spectra; fluorine coating on the front element
Aperture detailFixed f/11 aperture; cannot be stopped downf/2.8–22 at 7 mm and f/3.5–29 at 14 mm; maker minimum-aperture figures use 1/3-stop display
DiaphragmNo aperture bladesNine aperture blades
Angle of view–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 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 supportCompatible with RF extenders; 840 mm at f/16 with RF 1.4× or 1200 mm at f/22 with RF 2× (Cameralabs and Dustin Abbott). Autofocus performance depends on camera and light levelsCanon RF extenders not compatible
Focus and stabilisation
AutofocusYesYes
Minimum focus distance4.5 m0.15 m (autofocus)
Maximum magnification0.14×0.35× (autofocus)
Optical stabilisationYesNo
Autofocus detailLead-screw STM autofocus; Canon Camera Museum states a focus area of 40% horizontal × 60% vertical for the original supported EOS R bodiesLeadscrew-type STM focusing with position sensors; full-time manual focus; maker rear-focusing design maintains length during focus
Focus distance detailMinimum focus 4.5 m; full-range or 12 m–infinity focus limiter (Cameralabs and Dustin Abbott)Maker specifies 0.15 m throughout the 7–14 mm range in autofocus
Magnification detailMaximum 0.14×Maximum 0.35× at 14 mm in autofocus, measured at the image centre; do not assume identical magnification across a fisheye image
Stabilisation detailUp to five stops optical stabilisation under CIPA testing with EOS RNo lens optical IS; maker separately lists compatible camera IBIS at seven stops at the centre/14 mm under CIPA-2024 conditions
Video features–Circular 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 resistantNoYes
Filter diameter82 mm–
Maximum diameter93 mm76.5 mm
Length199.5 mm109.4 mm
Weight930 g476 g
ControlsSeparate manual focus and customisable control rings; focus limiter, AF/MF and stabiliser switchesZoom, focus and customisable control rings; AF/MF switch, function button and zoom lock/limit control (Digital Camera World)
Zoom designPrime lens with a retracting storage barrel; extend and lock the barrel before shootingInternal 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 resistanceNo dust or moisture sealing, including no rubber mount seal (Cameralabs)Dust 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 detail93 mm maximum diameter; 199.5 mm retracted length or 269.5 mm when extended for shootingApproximately 76.5 mm maximum diameter × 109.4 mm length, excluding detachable hood
Weight detailApproximately 930 g lensApproximately 476 g lens
Tripod mountBuilt-in tripod mounting thread; no rotating collar (Cameralabs)–
Lens hoodET-88B hood sold separately (Dustin Abbott)Detachable EW-76; remove for circular fisheye shooting to avoid the hood entering the image (Amateur Photographer; Digital Camera World)
In the boxLens, E-82II cap, RF dust cap and user manual kitDrop-in clear filter included
Release detailJuly 2020 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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