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Canon EF 100mm f/2.8 Macro 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

CanonEF 100mm f/2.8 MacroCanonRF 100mm F2.8 L Macro IS USM
Overview
ReleasedApril 1990July 2021
Optics
Lens typePrimePrime
Focal length100 mm100 mm
Maximum aperturef/2.8f/2.8
Minimum aperturef/32f/32
Macro lensYesYes
Optical constructionTen elements in nine 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
DiaphragmEight blades according to Canon Camera Museum; minimum f/32Nine aperture blades
Angle of view24° diagonal, 20° horizontal and 14° vertical according to Canon's manual–
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 support–Canon extenders not compatible
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.31 m0.26 m
Maximum magnification1×1.4×
Optical stabilisation–Yes
Autofocus detailAutofocus and manual focus selected with the AF/MF switch; Canon's manual lists Full and Limit focusing-range settingsDual Nano USM; electronic manual focusing with full-time manual override in One Shot AF when enabled in camera settings
Focus distance detailFull range is 0.31 m to infinity; the manual describes the close-up Limit setting as 0.31–0.57 m and its specification table also lists 0.57 m to infinity as a limited rangeMinimum 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 without a converter; minimum focusing distance is measured from the camera's image plane according to Canon's manualMaximum 1.4×; approximately 25 × 17 mm field of view at minimum focus
Stabilisation detail–Hybrid 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 resistant–Yes
Filter diameter52 mm67 mm
Maximum diameter75 mm81.5 mm
Length105.5 mm148 mm
Weight650 g685 g
ControlsAF/MF switch, Full/Limit switch, focusing ring, distance window, reproduction-ratio and depth-of-field scalesManual-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 resistance–Dust and moisture resistant construction; front fluorine coating
Filter detailFront screw-in filter; Canon's manual permits one filter at a time–
Dimensions detailCanon Camera Museum gives 75 mm maximum diameter × 105.5 mm length and 650 g. Canon's original manual instead lists 105.3 mm length, with 21.5 mm added for front and rear caps; dimensions and weight are lens-onlyApproximately 81.5 mm maximum diameter × 148 mm length
Weight detail–Approximately 685 g lens only, excluding caps and optional tripod mount
Tripod mount–Tripod mount ring E (B) with dedicated adapter sold separately
Lens hood–ET-73C hood included
In the box–Lens, 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 April 1990 marketing; no first-sale day is givenJuly 2021 marketed month in Canon Camera Museum

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