Canon RF 200–800mm F6.3–9 IS USM vs Canon RF 45mm F1.2 STM

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

Better figure, where one is clearly better

RF 200–800mm F6.3–9 IS USM compared with RF 45mm F1.2 STM
CanonRF 200–800mm F6.3–9 IS USMCanonRF 45mm F1.2 STM
Overview
ReleasedDecember 2023November 2025
Optics
Lens typeZoomPrime
Focal length200–800 mm45 mm
Maximum aperturef/6.3–9f/1.2
Minimum aperturef/32–54f/16
Optical constructionSeventeen elements in eleven groupsNine elements in seven groups
Special elementsThree UD elementsOne plastic-moulded aspherical element (Canon USA)
CoatingsSuper Spectra coating; no fluorine coatingSuper Spectra 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 mmf/1.2–16
DiaphragmNine aperture bladesNine aperture blades
Angle of view12°–3°05′ diagonal, 10°–2°35′ horizontal and 7°–1°40′ vertical43°35′ horizontal, 29°50′ vertical and 51°20′ diagonal on full frame
Mount and compatibility
MountsCanon RFCanon RF
Image circleFull frameFull frame
CompatibilityCanon RF mount for full-frame and APS-C EOS R camerasCanon EOS R cameras; full-frame image circle
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 extenderCanon RF extenders not compatible
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.8 m0.45 m
Maximum magnification0.25×0.13×
Optical stabilisationYesNo
Autofocus detailNano USM autofocus for fast stills focusing and smooth video transitionsGear-type STM autofocus with magnetic focus-position detection; full-time electronic manual focus
Focus distance detailMinimum focus 0.8 m at 200 mm and 3.3 m at 800 mmMinimum focusing distance 0.45 m; Canon does not separately specify AF/MF distances
Magnification detailMaximum 0.25× at 200 mm and 0.2× at 800 mm–
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 image stabilisation (Canon USA)
Design
Dust and moisture resistantYesNo
Filter diameter95 mm67 mm
Maximum diameter102.3 mm78 mm
Length314.1 mm75 mm
Weight2,060 g346 g (better)
ControlsCombined focus/control ring, customisable lens function buttons, AF/MF and stabiliser switches, and smooth/tight zoom torque adjustmentSeparate focus and clickable control rings; AF/MF switch; no iris ring or lens function button (Canon USA)
Filter detail–67 mm front screw-in filter thread
Zoom designBarrel extends when zooming towards 800 mm–
Weather resistanceDust and moisture resistant construction; white exterior helps limit heating in sunlightNo dust or weather resistant construction (Canon USA)
Dimensions detail102.3 mm maximum diameter × 314.1 mm length with barrel retractedApproximately 78 mm maximum diameter × 75 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 346 g lens
Tripod mountAttached rotating tripod collar; not removable or Arca-Swiss compatible (Amateur Photographer)–
Lens hoodET-101 hood includedOptional ES-73B hood and LP1116 case; E-67 II front cap and Lens Dust Cap RF listed by Canon
In the boxLens, E-95 cap, ET-101 hood, RF dust cap, Lens Strap 40 and user manualFront and rear lens caps (Amateur Photographer); hood not included
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 marketedCanon Japan's 14 November 2025 notice confirms first sale on 28 November 2025; Photography Blog instead reports availability from 20 November without a matching regional maker day, so no UK date is inferred

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