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Canon EF-S 18–55mm f/4–5.6 IS STM vs Canon RF-S 18–45mm F4.5–6.3 IS STM

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

Better figure, where one is clearly better

CanonEF-S 18–55mm f/4–5.6 IS STMCanonRF-S 18–45mm F4.5–6.3 IS STM
Overview
ReleasedApril 2017June 2022
Optics
Lens typeZoomZoom
Focal length18–55 mm18–45 mm
Maximum aperturef/4–5.6f/4.5–6.3
Minimum aperturef/22–32f/22–32
Optical construction12 elements in ten groupsSeven elements in seven groups
Special elementsAspherical lens elementTwo plastic-moulded aspherical elements; Super Spectra coating; no fluorine coating
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
CoatingsSuper Spectra coatings–
DiaphragmSeven blades with a circular apertureSeven blades
Angle of viewHorizontal 64°30′–23°20′; vertical 45°30′–15°40′; diagonal 74°20′–27°50′ according to the exact Canon manual–
Mount and compatibility
MountsCanon EF-SCanon RF
Image circleAPS-CAPS-C
CompatibilityCanon EF-S compatible APS-C cameras; 29–88 mm equivalent field of viewCanon RF mount with APS-C image circle; full-frame EOS R bodies crop to APS-C; RF extenders and EF extension tubes not compatible
Teleconverter supportCanon extenders cannot be used–
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.25 m0.15 m (manual focus)
Maximum magnification0.25×0.26× (manual focus)
Optical stabilisationYesYes
Autofocus detailLead-screw STM; electronic manual adjustment after One-Shot autofocus while the shutter button remains half pressed, subject to camera settingsSTM autofocus and electronic manual focusing
Focus distance detailManual focusing is unavailable with the camera off or lens asleep; internal focusing with a non-rotating front element according to both reviewsAutofocus 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 detailMaximum 0.25× at 55 mm; EF12 II gives 0.82–0.66× at 18 mm and 0.55–0.23× at 55 mm; EF25 II is incompatible at 18 mm and gives 0.91–0.51× at 55 mmAutofocus 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 detailFour-stop CIPA claim at 55 mm using an EOS 7D Mark II; automatic panning compensation; Canon recommends switching IS off on a tripod to conserve powerOptical 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–No
Filter diameter58 mm49 mm
Maximum diameter66.5 mm69 mm
Length61.8 mm44.3 mm
Weight215 g130 g
Controls–Combined focus/control ring and zoom ring; AF/MF and IS controlled through camera settings
Zoom designBarrel extends when zoomed to 55 mm according to The Digital PictureRetractable barrel; lens must be extended for shooting
Weather resistance–No dust or moisture resistance
Dimensions detail66.5 mm maximum diameter × 61.8 mm retracted length; dimensions and 215 g weight are lens only, excluding capsApproximately 69 mm maximum diameter × 44.3 mm length, retracted
Weight detail–Approximately 130 g lens
Lens hoodEW-63C sold separately; exact manual and Canon Japan list LP1014 optional case, while the UK overview lists LP1016EW-53 hood and LP814 pouch, sold separately
In the box–Lens, E-49 front cap, RF lens dust cap and user manual
Release detailCanon Japan's exact support specification gives first sale on 7 April 2017; Camera Museum gives April. The day is the Japanese release, not a separately confirmed UK day.June 2022 marketed month in Canon Camera Museum

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