Canon RF 400mm F2.8L IS USM vs Canon RF-S 14–30mm F4–6.3 IS STM PZ

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RF 400mm F2.8L IS USM compared with RF-S 14–30mm F4–6.3 IS STM PZ

	CanonRF 400mm F2.8L IS USM	CanonRF-S 14–30mm F4–6.3 IS STM PZ
Overview
Released
Released	July 2021	April 2025
Optics
Lens type
Lens type	Prime	Zoom
Focal length
Focal length	400 mm	14–30 mm
Maximum aperture
Maximum aperture	f/2.8	f/4–6.3
Minimum aperture
Minimum aperture	f/32	f/22–38
Optical construction
Optical construction	Seventeen elements in thirteen groups	10 elements in nine groups
Special elements
Special elements	Two fluorite elements and one Super UD element	–
Coatings
Coatings	Super Spectra and ASC; fluorine coatings on front and rear elements	Super Spectra coating
Aperture detail
Aperture detail	Maximum f/2.8; minimum f/32	Maker minimum aperture f/22 at14mm and f/38 at30mm using half-stop display; Ken Rockwell reports f/36 at30mm, while Digital Camera World lists f/32. Main values retain the maker’s explicitly stated display convention
Diaphragm
Diaphragm	Nine blades	Seven blades
Angle of view
Angle of view	Full-frame diagonal 6°10′	–
Mount and compatibility
Mounts
Mounts	Canon RF	Canon RF
Image circle
Image circle	Full frame	APS-C
Compatibility
Compatibility	Canon RF mount for full-frame and APS-C EOS R cameras	Canon RF mount, APS-C image circle; UK maker lists compatible full-frame EOS R bodies with crop restrictions
Image circle detail
Image circle detail	–	Physical14–30mm focal length;22.4–48mm equivalent angle of view on Canon APS-C, distinct from any additional movie crop
Teleconverter support
Teleconverter support	Compatible with RF 1.4× and RF 2× extenders	–
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	2.5 m	0.15 m
Maximum magnification
Maximum magnification	0.17×	0.38×
Optical stabilisation
Optical stabilisation	Yes	Yes
Autofocus detail
Autofocus detail	Ring-type USM with Power Doubled Focus Drive on compatible cameras; full-time manual override	STM autofocus; combined electronic focus/control ring. No dedicated AF/MF switch
Focus distance detail
Focus distance detail	2.5 m minimum focus; two stored focus presets and variable-speed manual focusing	Maker minimum focus0.15m throughout the zoom range; no AF/MF distinction published in the specification table
Magnification detail
Magnification detail	0.17× maximum magnification	0.17× at14mm and0.38× at30mm
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	Lens optical IS rated five stops at30mm with EOS R10, yaw/pitch under CIPA2024. Coordinated EOS R7 body/lens IS rated7.5 central and5.5 peripheral stops at30mm, yaw/pitch/roll. Ken Rockwell measured about2.5–2.7 stops on EOS R50 V held at arm’s length, a different test condition
Video features
Video features	Aperture control in 1/8-stop increments; power-focus mode for controlled focus transitions	Internal power zoom controlled by lens ring, compatible camera controls or remote smartphone/Bluetooth control; UK maker describes two-step variable speed and15 adjustable levels. Movie Digital IS is camera processing with additional crop, distinct from lens optical IS
Design
Dust and moisture resistant
Dust and moisture resistant	Yes	No
Filter diameter
Filter diameter	52 mm	58 mm
Maximum diameter
Maximum diameter	163 mm	69.6 mm
Length
Length	367 mm	62 mm
Weight
Weight	2,890 g	181 g (better)
Controls
Controls	Focus ring, playback ring, focus-preset controls and customisable lens-function buttons; no custom control ring (Cameralabs)	Combined focus/control ring and power zoom ring; no dedicated stabilisation switch
Zoom design
Zoom design	–	Non-extending internal motorised zoom maintains the lens’s62mm length
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	–
Weather resistance
Weather resistance	Dust- and moisture-resistant construction with heat-reflective white paint	Maker FAQ explicitly states no dust or drip resistant construction
Dimensions detail
Dimensions detail	163 mm maximum diameter × 367 mm length	Approximately69.6mm maximum diameter ×62mm length
Weight detail
Weight detail	Approximately 2,890 g lens	Approximately181g lens, per maker; Ken Rockwell measured179.1g
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-155 (WIII) included; shorter ET-155B optional	EW-63C, sold separately
In the box
In the box	Lens, RF dust cap, drop-in screw-type filter holder 52 (WIII) with 52 mm Protect filter, E-180E soft cap, ET-155 (WIII) hood, LS400 soft case, Lens Wide Strap B and user manual	UK maker store lists lens, E-58 II front cap, Lens Dust Cap RF and user manual
Release detail
Release detail	July 2021 Japanese first release, confirmed retrospectively by Canon's March 2022 announcement and Camera Museum	Canon USA scheduled the EOS R50 V kit containing this lens for April2025; Canon Indonesia’s22April2025 launch lists both kit and standalone lens for sale. Japan FAQ’s lateJuly2025 planned standalone release is a later regional date, not the earliest availability. No exact worldwide first-sale day inferred