Canon RF 600mm F4L IS USM vs Canon RF 7-14mm F2.8-3.5L FISHEYE STM

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RF 600mm F4L IS USM compared with RF 7-14mm F2.8-3.5L FISHEYE STM

	CanonRF 600mm F4L IS USM	CanonRF 7-14mm F2.8-3.5L FISHEYE STM
Overview
Released
Released	July 2021	February 2026
Optics
Lens type
Lens type	Prime	Zoom
Focal length
Focal length	600 mm	7–14 mm
Maximum aperture
Maximum aperture	f/4	f/2.8–3.5
Minimum aperture
Minimum aperture	f/32	f/22–29
Optical construction
Optical construction	Seventeen elements in thirteen groups	16 elements in 11 groups
Special elements
Special elements	Two fluorite elements and one Super UD element	Five UD and two replica aspherical elements
Coatings
Coatings	Super Spectra and ASC; fluorine coatings on front and rear elements	Three ASC coatings and Super Spectra; fluorine coating on the front element
Aperture detail
Aperture detail	Maximum f/4; minimum f/32	f/2.8–22 at 7 mm and f/3.5–29 at 14 mm; maker minimum-aperture figures use 1/3-stop display
Diaphragm
Diaphragm	Nine blades	Nine aperture blades
Angle of view
Angle of view	Full-frame diagonal 4°10′	Horizontal 190°–149°45′, vertical 190°–99°50′ and diagonal 190°–180° on full frame
Projection
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
Mounts
Mounts	Canon RF	Canon RF
Image circle
Image circle	Full frame	Full frame
Compatibility
Compatibility	Canon RF mount for full-frame and APS-C EOS R cameras; 960 mm equivalent field of view on Canon APS-C	Canon 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 support
Teleconverter support	Compatible with RF 1.4× and RF 2× extenders	Canon RF extenders not compatible
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	4.2 m	0.15 m (autofocus)
Maximum magnification
Maximum magnification	0.15×	0.35× (autofocus)
Optical stabilisation
Optical stabilisation	Yes	No
Autofocus detail
Autofocus detail	Ring-type USM with Power Doubled Focus Drive on compatible cameras; full-time manual override	Leadscrew-type STM focusing with position sensors; full-time manual focus; maker rear-focusing design maintains length during focus
Focus distance detail
Focus distance detail	4.2 m minimum focus; two stored focus presets and variable-speed manual focusing	Maker specifies 0.15 m throughout the 7–14 mm range in autofocus
Magnification detail
Magnification detail	0.15× maximum magnification	Maximum 0.35× at 14 mm in autofocus, measured at the image centre; do not assume identical magnification across a fisheye image
Stabilisation detail
Stabilisation detail	Canon rates optical IS at 5.5 stops with EOS R or EOS R5 under CIPA yaw/pitch conditions; modes 1, 2 and 3	No lens optical IS; maker separately lists compatible camera IBIS at seven stops at the centre/14 mm under CIPA-2024 conditions
Video features
Video features	Aperture control in 1/8-stop increments; power-focus mode for controlled focus transitions	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 resistant
Dust and moisture resistant	Yes	Yes
Filter diameter
Filter diameter	52 mm	–
Maximum diameter
Maximum diameter	168 mm	76.5 mm
Length
Length	472 mm	109.4 mm
Weight
Weight	3,090 g	476 g (better)
Controls
Controls	Focus ring, playback ring, focus-preset controls and lens-function buttons; no custom control ring (Cameralabs)	Zoom, focus and customisable control rings; AF/MF switch, function button and zoom lock/limit control (Digital Camera World)
Zoom design
Zoom design	–	Internal zoom and focus retain the same physical lens length (Amateur Photographer; Digital Camera World)
Filter detail
Filter detail	52 mm drop-in screw-type filter holder 52 (WIII), supplied with a clear Protect filter; optional circular polariser and gelatin holder	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 resistance
Weather resistance	Dust- and moisture-resistant construction with heat-reflective white paint	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 detail
Dimensions detail	168 mm maximum diameter × 472 mm length	Approximately 76.5 mm maximum diameter × 109.4 mm length, excluding detachable hood
Weight detail
Weight detail	Approximately 3,090 g lens	Approximately 476 g lens
Tripod mount
Tripod mount	Rotating built-in foot with 1/4-inch and 3/8-inch threads; no Arca-Swiss dovetail (Cameralabs)	–
Lens hood
Lens hood	ET-160 (WIII) included; shorter ET-160B optional	Detachable EW-76; remove for circular fisheye shooting to avoid the hood entering the image (Amateur Photographer; Digital Camera World)
In the box
In the box	Lens, RF dust cap, drop-in screw-type filter holder 52 (WIII) with 52 mm Protect filter, E-185C soft cap, ET-160 (WIII) hood, LS600 soft case, Lens Wide Strap B and user manual	Drop-in clear filter included
Release detail
Release detail	July 2021 Japanese first release confirmed retrospectively by Canon's March 2022 announcement and Camera Museum	Canon Japan specifies first sale on 20 February 2026; US announcement expected availability by the end of February, rather than the same exact regional day