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Canon RF 14mm F1.4L VCM vs Canon RF 800mm F5.6L IS USM

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

Better figure, where one is clearly better

CanonRF 14mm F1.4L VCMCanonRF 800mm F5.6L IS USM
Overview
ReleasedFebruary 2026May 2022
Optics
Lens typePrimePrime
Focal length14 mm800 mm
Maximum aperturef/1.4f/5.6
Minimum aperturef/16f/64
Optical construction18 elements in 13 groupsTwenty-six elements in eighteen groups
Special elementsOne fluorite, one UD, one BR and three glass-moulded aspherical elementsTwo fluorite elements, one Super UD and one UD element
CoatingsTwo ASC coatings, SWC and Super Spectra; fluorine coating on the front elementSuper Spectra and ASC; fluorine coating on the front element
Aperture detailf/1.4–16; iris ring supports stepless aperture control in video, with stills compatibility dependent on camera modelMaximum f/5.6; minimum f/64
Diaphragm11 circular aperture bladesNine circular blades
Angle of view104° horizontal, 81° vertical and 114° diagonal on full frameFull-frame diagonal 3°05′; horizontal 2°35′; vertical 1°40′
ProjectionRectilinear ultra-wide design–
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameFull frame
CompatibilityCanon EOS R cameras; full-frame image circle; iris-ring functions depend on the camera and firmwareCanon RF mount for full-frame and APS-C EOS R cameras
Teleconverter supportCanon RF extenders not compatibleRF 1.4× gives 1120 mm f/8 with 0.49× magnification; RF 2× gives 1600 mm f/11 with 0.71×; AF and IS operate with either extender
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.24 m2.6 m
Maximum magnification0.11×0.34×
Optical stabilisationNoYes
Autofocus detailVoice Coil Motor autofocus; electronic manual focus ring; maker rear-focus design maintains lens length during focusingRing-type USM; electronic full-time manual focus requires compatible body settings; original EOS R, RP and Ra are unsupported, and R5/R6 require firmware 1.3.0 or later
Focus distance detail–2.6 m minimum focus; full range, 2.6–20 m and 20 m–infinity limiter settings; three manual-focus speeds and two stored focus presets
Magnification detail–0.34× maximum magnification; approximately 206 × 138 mm subject fills a full-frame image at minimum focus
Stabilisation detailNo lens optical IS; maker lists camera IBIS CIPA-2024 performance of 6.5 stops at the centre and 2.5 at the corners, subject to the compatible camera/test conditionsCanon UK and Japan rate optical IS at 4.5 stops with EOS R, R5 or R3 under CIPA yaw/pitch conditions; modes 1, 2 and 3
Video featuresStepless iris ring; Canon Japan identifies EOS R1/EOS R5 Mark II stills iris-ring support; the US launch also names EOS R6 Mark III; do not assume the same support on every EOS R bodyAperture control in 1/8-stop increments; power-focus mode with two speeds selected by playback-ring rotation
Design
Dust and moisture resistantYesYes
Filter diameter–52 mm
Maximum diameter76.5 mm163 mm
Length112 mm432 mm
Weight578 g3,140 g
ControlsCustomisable control ring, electronic focus ring, iris ring with Auto-position lock, AF/MF switch and custom function button (controls confirmed by Digital Camera World)Focus and playback rings, AF/PF/MF selector, focus-speed and preset switches, and four lens-function buttons
Filter detailNo front screw-in filter thread; rear gelatin-filter holder for 36.7 × 29.4 mm filters52 mm drop-in screw-type holder 52 (WIII), supplied with a clear Protect filter; compatible with optional drop-in polariser and gelatin holder
Weather resistanceDust and moisture resistant structure with mount gasket; Canon states resistance requires attachment to a camera and cannot prevent all dust or water ingress; no IP rating inferredDust- and moisture-resistant construction with heat-reflective paint
Dimensions detailApproximately 76.5 mm maximum diameter × 112 mm length; integral hood163 mm maximum diameter × 432 mm length
Weight detailApproximately 578 g lensApproximately 3,140 g lens
Tripod mount–Supplied tripod collar and support foot
Lens hoodBuilt into the lens barrel; maker lists lens cap 14B, Lens Dust Cap RF and pouch LP1219 as accessoriesET-155 (WIII) included; shorter ET-155B optional
In the box–Lens, drop-in screw-type filter holder 52 (WIII) with 52 mm Protect filter, E-180E cap, RF dust cap, ET-155 (WIII) hood, LS600 soft case, Lens Wide Strap B 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 dayFirst sale in Japan on 26 May 2022, stated by Canon Japan support; the original announcement promised late May

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