Canon RF 28mm F2.8 STM vs Canon RF-S 18–45mm F4.5–6.3 IS STM

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RF 28mm F2.8 STM compared with RF-S 18–45mm F4.5–6.3 IS STM

	CanonRF 28mm F2.8 STM	CanonRF-S 18–45mm F4.5–6.3 IS STM
Overview
Released
Released	July 2023	June 2022
Optics
Lens type
Lens type	Prime	Zoom
Focal length
Focal length	28 mm	18–45 mm
Maximum aperture
Maximum aperture	f/2.8	f/4.5–6.3
Minimum aperture
Minimum aperture	f/22	f/22–32
Optical construction
Optical construction	Eight elements in six groups	Seven elements in seven groups
Special elements
Special elements	Three plastic-moulded aspherical elements; Super Spectra coating; no fluorine coating	Two plastic-moulded aspherical elements; Super Spectra coating; no fluorine coating
Aperture detail
Aperture detail	–	Minimum f/22 at 18 mm and f/32 at 45 mm, per UK and Japan specifications; Camera Museum table lists f/18 at 18 mm
Diaphragm
Diaphragm	Seven blades, circular aperture	Seven blades
Mount and compatibility
Mounts
Mounts	Canon RF	Canon RF
Image circle
Image circle	Full frame	APS-C
Compatibility
Compatibility	Canon RF mount, full-frame image circle; RF extenders not compatible	Canon RF mount with APS-C image circle; full-frame EOS R bodies crop to APS-C; RF extenders and EF extension tubes not compatible
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	0.23 m	0.15 m (manual focus)
Maximum magnification
Maximum magnification	0.17×	0.26× (manual focus)
Optical stabilisation
Optical stabilisation	No	Yes
Autofocus detail
Autofocus detail	STM autofocus and electronic manual focusing	STM autofocus and electronic manual focusing
Focus distance detail
Focus distance detail	Minimum focusing distance 0.23 m	Autofocus minimum 0.20 m at 18 mm, 0.30 m at 35 mm and 0.35 m at 45 mm; manual-focus minimum 0.15 m, 0.24 m and 0.25 m at those focal lengths
Magnification detail
Magnification detail	Maximum 0.17× reproduction	Autofocus maximum 0.14× at 18 mm, 0.15× at 35 mm and 0.16× at 45 mm; manual-focus maximum 0.25×, 0.21× and 0.26× respectively
Stabilisation detail
Stabilisation detail	No lens optical IS; compatible camera stabilisation is separate	Optical IS rated four stops with EOS R10 at 45 mm under CIPA, yaw/pitch; coordinated IS rated 6.5 stops with EOS R7 at 45 mm under CIPA, yaw/pitch
Design
Dust and moisture resistant
Dust and moisture resistant	No	No
Filter diameter
Filter diameter	55 mm	49 mm
Maximum diameter
Maximum diameter	69.2 mm	69 mm
Length
Length	24.7 mm	44.3 mm
Weight
Weight	120 g (better)	130 g
Controls
Controls	Combined focus/control ring with AF/Control/MF selector	Combined focus/control ring and zoom ring; AF/MF and IS controlled through camera settings
Zoom design
Zoom design	–	Retractable barrel; lens must be extended for shooting
Weather resistance
Weather resistance	No dust or moisture resistance	No dust or moisture resistance
Dimensions detail
Dimensions detail	Approximately 69.2 mm maximum diameter × 24.7 mm length, retracted	Approximately 69 mm maximum diameter × 44.3 mm length, retracted
Weight detail
Weight detail	Approximately 120 g lens	Approximately 130 g lens
Lens hood
Lens hood	EW-55, sold separately	EW-53 hood and LP814 pouch, sold separately
In the box
In the box	Lens, E-55 front cap, RF lens dust cap and user manual	Lens, E-49 front cap, RF lens dust cap and user manual
Release detail
Release detail	July 2023 marketed month in Canon Camera Museum	June 2022 marketed month in Canon Camera Museum