Canon RF 200–800mm F6.3–9 IS USM vs Canon RF 20mm F1.4 L VCM

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RF 200–800mm F6.3–9 IS USM compared with RF 20mm F1.4 L VCM
CanonRF 200–800mm F6.3–9 IS USMCanonRF 20mm F1.4 L VCM
Overview
ReleasedDecember 2023April 2025
Optics
Lens typeZoomPrime
Focal length200–800 mm20 mm
Maximum aperturef/6.3–9f/1.4
Minimum aperturef/32–54f/16
Optical constructionSeventeen elements in eleven groupsFifteen elements in eleven groups
Special elementsThree UD elementsOne Super UD, two UD, one BR and two glass-moulded aspherical elements; ASC, SWC and Super Spectra coatings; front fluorine coating
CoatingsSuper Spectra coating; no fluorine coating–
Aperture detailMaximum f/6.3 at 200 mm and f/9 at 800 mm; minimum f/32–54 in the current UK specification. Canon Camera Museum instead lists f/51 at 800 mm–
DiaphragmNine aperture bladesEleven blades with circular aperture
Angle of view12°–3°05′ diagonal, 10°–2°35′ horizontal and 7°–1°40′ vertical–
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameFull frame
CompatibilityCanon RF mount for full-frame and APS-C EOS R camerasCanon RF mount for full-frame and APS-C EOS R cameras; RF extenders not compatible. Iris ring provides movie aperture control; Canon lists EOS R, RP, Ra, R3, R5, R6, R6 Mark II, R7, R8, R10, R50, R100 and R5 C as unable to set still-photo aperture with this ring even with their latest firmware
Teleconverter supportRF 1.4× gives 280–1120 mm at f/9–13, maximum 0.37×; RF 2× gives 400–1600 mm at f/13–18, maximum 0.54×. Autofocus and stabilisation supported throughout the zoom range; autofocus coverage depends on camera and extender–
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.8 m0.2 m
Maximum magnification0.25×0.19×
Optical stabilisationYesNo
Autofocus detailNano USM autofocus for fast stills focusing and smooth video transitionsRear focusing system driven by a VCM motor
Focus distance detailMinimum focus 0.8 m at 200 mm and 3.3 m at 800 mmMinimum focus 0.2 m
Magnification detailMaximum 0.25× at 200 mm and 0.2× at 800 mmMaximum 0.19×
Stabilisation detailUp to 5.5 stops optical stabilisation with EOS R at 800 mm, or 5.5 stops coordinated stabilisation with EOS R3 at 800 mm; CIPA yaw and pitch testing. Coordinated correction has greater effect towards the wide endNo optical stabiliser; Canon rates EOS R1 in-body stabilisation at 8 stops centrally and 5 stops in the corners under CIPA-2024 testing
Design
Dust and moisture resistantYesYes
Filter diameter95 mm67 mm
Maximum diameter102.3 mm76.5 mm
Length314.1 mm99.3 mm
Weight2,060 g519 g (better)
ControlsCombined focus/control ring, customisable lens function buttons, AF/MF and stabiliser switches, and smooth/tight zoom torque adjustmentElectronic manual-focus, customisable control and smooth-action iris rings; iris Auto-position lock; customisable lens function button; AF/MF switch
Filter detail–67 mm front thread and rear filter holder; Canon specifies a single rear filter no thicker than 0.2 mm and recommends removing the holder when unused to avoid possible ghosting
Zoom designBarrel extends when zooming towards 800 mm–
Weather resistanceDust and moisture resistant construction; white exterior helps limit heating in sunlightDust and moisture resistant construction with mount rubber seal
Dimensions detail102.3 mm maximum diameter × 314.1 mm length with barrel retractedApproximately 76.5 mm maximum diameter × 99.3 mm length
Weight detailApproximately 2060 g current production; products manufactured before July 2026 weigh 2050 g. Canon's Japanese notice attributes the change to revised component specificationsApproximately 519 g lens
Tripod mountAttached rotating tripod collar; not removable or Arca-Swiss compatible (Amateur Photographer)–
Lens hoodET-101 hood includedEW-73H hood included
In the boxLens, E-95 cap, ET-101 hood, RF dust cap, Lens Strap 40 and user manualLens, E-67 II front cap, RF dust cap, EW-73H hood, LP1219 case, rear filter holder and user manual
Release detailDecember 2023 release confirmed retrospectively by Canon's February 2024 global announcement; Japan's launch notice states early December and the US announcement expected December. Canon Camera Museum instead labels November 2023 as marketedApril 2025 marketed month in Canon Camera Museum

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