Canon RF 14–35mm F4 L IS USM vs Canon RF 15–35mm F2.8 L IS USM

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RF 14–35mm F4 L IS USM compared with RF 15–35mm F2.8 L IS USM

	CanonRF 14–35mm F4 L IS USM	CanonRF 15–35mm F2.8 L IS USM
Overview
Released
Released	September 2021	September 2019
Optics
Lens type
Lens type	Zoom	Zoom
Focal length
Focal length	14–35 mm	15–35 mm
Maximum aperture
Maximum aperture	f/4	f/2.8
Minimum aperture
Minimum aperture	f/22	f/22
Optical construction
Optical construction	Sixteen elements in twelve groups	Sixteen elements in twelve groups
Special elements
Special elements	Two UD elements, one UD aspherical element and two glass-moulded aspherical elements; Super Spectra, SWC and ASC coatings; fluorine coating on the front surface of the front element	Three glass-moulded aspherical elements and UD elements; SWC and ASC coatings; fluorine coatings on the front and rear elements
Diaphragm
Diaphragm	Nine blades with circular aperture	Nine blades with circular aperture
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; RF extenders and EF extension tubes not compatible	Canon RF mount for full-frame and APS-C EOS R cameras; RF extenders not compatible
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	0.2 m	0.28 m
Maximum magnification
Maximum magnification	0.38×	0.21×
Optical stabilisation
Optical stabilisation	Yes	Yes
Autofocus detail
Autofocus detail	Nano USM rear focusing system; full-time manual focus in One-Shot AF	Nano USM motor; electronic manual focusing
Focus distance detail
Focus distance detail	Minimum focus 0.2 m throughout the zoom range	Minimum focus 0.28 m
Magnification detail
Magnification detail	Maximum 0.38× at 35 mm	Maximum 0.21× at 35 mm
Stabilisation detail
Stabilisation detail	Optical IS rated 5.5 stops with EOS R at 35 mm under CIPA, yaw/pitch; coordinated IS rated seven stops with EOS R5 at 35 mm under CIPA, yaw/pitch	Optical IS rated five stops with EOS R at 35 mm under CIPA standards
Design
Dust and moisture resistant
Dust and moisture resistant	Yes	Yes
Filter diameter
Filter diameter	77 mm	82 mm
Maximum diameter
Maximum diameter	84.1 mm	88.5 mm
Length
Length	99.8 mm	126.8 mm
Weight
Weight	540 g (better)	840 g
Controls
Controls	Zoom, electronic manual-focus and customisable control rings; AF/MF and stabiliser on/off switches; automatic panning detection	Zoom, electronic manual-focus and customisable control rings; AF/MF and stabiliser on/off switches
Zoom design
Zoom design	Barrel extends towards both ends of the zoom range; minimum length near 22 mm; camera-side electronic distortion correction contributes to the compact optical design	Barrel extends as the lens zooms from 35 mm towards 15 mm (Cameralabs)
Weather resistance
Weather resistance	Weather-resistant seals at the mount, switches, zoom ring, focus ring and control ring	Dust and water resistant construction; Canon states this cannot completely prevent dust or droplets entering
Dimensions detail
Dimensions detail	Approximately 84.1 mm maximum diameter × 99.8 mm minimum length near 22 mm; maximum length 107.9 mm at 35 mm (Canon USA specifications)	Approximately 88.5 mm maximum diameter × 126.8 mm length, retracted
Weight detail
Weight detail	Approximately 540 g lens	Approximately 840 g lens
Lens hood
Lens hood	EW-83P petal hood included	EW-88F petal hood included
In the box
In the box	Lens, E-77 II front cap, RF dust cap, EW-83P hood, LP1219 soft case and user manual	Lens, E-82 II front cap, RF dust cap, EW-88F hood and LP1222 case
Release detail
Release detail	September 2021 marketed month in Canon Camera Museum	September 2019 marketed month in Canon Camera Museum