Canon EF 100mm f/2.8L Macro IS USM vs Canon RF 100mm F2.8 L Macro IS USM

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

Better figure, where one is clearly better

EF 100mm f/2.8L Macro IS USM compared with RF 100mm F2.8 L Macro IS USM
CanonEF 100mm f/2.8L Macro IS USMCanonRF 100mm F2.8 L Macro IS USM
Overview
ReleasedOctober 2009July 2021
Optics
Lens typePrimePrime
Focal length100 mm100 mm
Maximum aperturef/2.8f/2.8
Minimum aperturef/32f/32
Macro lensYesYes
Optical constructionFifteen elements in twelve groupsSeventeen elements in thirteen groups
Coatings–Super Spectra coating and front-element fluorine coating
Aperture detail–Maximum f/2.8 at infinity; effective f-number becomes f/6.6 at 1.4× magnification according to the manual
Special elementsOne UD element according to Canon Camera Museum–
DiaphragmNine blades with a circular apertureNine aperture blades
Angle of viewCanon UK specifies 24° diagonal, 19.8° horizontal and 13.5° vertical; the Japanese manual rounds horizontal and vertical to 20° and 14°–
Mount and compatibility
MountsCanon EFCanon RF
Image circleFull frameFull frame
CompatibilityCanon EF cameras with full-frame or APS-C sensorsCanon RF mount for full-frame and APS-C EOS R cameras; EF12 II and EF25 II extension tubes not compatible
Teleconverter supportCanon's manual excludes Extender EF1.4X II and EF2X IICanon extenders not compatible
Adaptor supportCanon UK confirms EOS M compatibility using the EF-EOS M Mount Adapter–
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.3 m0.26 m
Maximum magnification1×1.4×
Optical stabilisationYesYes
Autofocus detailRing USM with full-time manual adjustment after One Shot AF while holding the shutter half-pressed according to Canon's manualDual Nano USM; electronic manual focusing with full-time manual override in One Shot AF when enabled in camera settings
Focus distance detailInternal focusing; limiter selects full 0.3 m to infinity, 0.3–0.5 m or 0.5 m to infinityMinimum focus 0.26 m from the imaging plane; 8.6 cm working distance from the lens front; limiter settings full, 0.5 m to infinity or 0.26–0.5 m
Magnification detailLife-size 1× reproduction; 0.3 m focusing distance is measured from the image plane, while the manual gives approximately 14 cm working distance from the lens frontMaximum 1.4×; approximately 25 × 17 mm field of view at minimum focus
Stabilisation detailHybrid IS corrects angular and lateral shift shake; Canon claims four stops in general shooting, three at 0.5× and two at 1×. The manual notes that subject movement is not correctedHybrid IS rated up to 5 stops with EOS R; 2 stops at 1.0× under Canon test standards; up to 8 stops coordinated with EOS R5 IBIS under CIPA yaw/pitch testing
Design
Dust and moisture resistantYesYes
Filter diameter67 mm67 mm
Maximum diameter77.7 mm81.5 mm
Length123 mm148 mm
Weight625 g (better)685 g
ControlsAF/MF switch, three-position focus-range limiter, stabiliser on/off switch, focus ring and distance windowManual-focus and customisable lens control rings; AF/MF, stabiliser and focus limiter switches; Spherical Aberration control ring with central-position lock. SA adjustment changes bokeh, soft focus, angle of view and exposure; its effect disappears at 0.26 m
Weather resistanceDust and moisture resistance with a rubber seal around the lens mountDust and moisture resistant construction; front fluorine coating
Dimensions detail77.7 mm maximum diameter × 123 mm length; dimensions and 625 g weight are lens-only according to Canon's manualApproximately 81.5 mm maximum diameter × 148 mm length
Weight detail–Approximately 685 g lens only, excluding caps and optional tripod mount
Tripod mountOptional Ring-type Tripod Mount D (B), removable with the camera attached according to Canon's manualTripod mount ring E (B) with dedicated adapter sold separately
Lens hoodSupplied ET-73 hood according to Canon UKET-73C hood included
In the boxLens, E-67U front cap, Lens Dust Cap E, LP1219 case, ET-73 hood and user manual according to Canon UKLens, E-67 II front cap, RF dust cap, ET-73C hood, LP1222 lens case and user manual kit (Canon UK store)
Release detailCanon Camera Museum records October 2009 marketing; no first-sale day is givenJuly 2021 marketed month in Canon Camera Museum

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