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Canon EF 100mm f/2.8 Macro vs Canon EF 100mm f/2.8 Macro USM

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

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CanonEF 100mm f/2.8 MacroCanonEF 100mm f/2.8 Macro USM
Overview
ReleasedApril 1990March 2000
Optics
Lens typePrimePrime
Focal length100 mm100 mm
Maximum aperturef/2.8f/2.8
Minimum aperturef/32f/32
Macro lensYesYes
Optical constructionTen elements in nine groupsTwelve elements in eight groups with three-group floating focusing
DiaphragmEight blades according to Canon Camera Museum; minimum f/32Eight blades; Canon UK's store describes a circular aperture
Angle of view24° diagonal, 20° horizontal and 14° vertical according to Canon's manual24° diagonal, 20° horizontal and 14° vertical according to Canon's manual
Mount and compatibility
MountsCanon EFCanon EF
Image circleFull frameFull frame
CompatibilityCanon EF cameras with full-frame or APS-C sensorsCanon EF cameras with full-frame or APS-C sensors
Teleconverter support–Canon's manual excludes Extender EF1.4X II and EF2X II
Focus and stabilisation
AutofocusYesYes
Minimum focus distance0.31 m0.31 m
Maximum magnification1×1×
Optical stabilisation–No
Autofocus detailAutofocus and manual focus selected with the AF/MF switch; Canon's manual lists Full and Limit focusing-range settingsRing USM; full-time manual adjustment after One Shot AF while holding the shutter half-pressed according to Canon's manual
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 rangeInternal focusing keeps the length constant and the front ring stationary; focus limiter selects 0.31 m to infinity or 0.48 m to infinity
Magnification detailLife-size 1× reproduction without a converter; minimum focusing distance is measured from the camera's image plane according to Canon's manualLife-size 1× reproduction without attachments; Canon Camera Museum gives 149 mm working distance at life-size, distinct from 0.31 m image-plane focusing distance
Stabilisation detail–No optical stabilisation according to The Digital Picture's exact-model specification table
Design
Dust and moisture resistant–No
Filter diameter52 mm58 mm
Maximum diameter75 mm79 mm
Length105.5 mm119 mm
Weight650 g600 g
ControlsAF/MF switch, Full/Limit switch, focusing ring, distance window, reproduction-ratio and depth-of-field scalesAF/MF switch, focus-range switch, focus ring, distance window and reproduction-ratio scale
Weather resistance–No weather sealing according to The Digital Picture's exact-model specification table
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-onlyCanon Camera Museum gives 79 mm diameter × 119 mm length and 600 g; Canon's Japanese manual instead lists 78.6 × 118.6 mm and 580 g. Both describe the same model; no separately marketed revision is identified
Weight detail–Headline weight follows Canon Camera Museum's historical specification; the manual's 580 g figure is lens-only, excluding caps and optional tripod ring
Tripod mount–Optional Ring-type Tripod Mount B (B), with the adaptor specifically for this lens, according to Canon's manual
Lens hood–ET-67; optional according to the two reviews
Release detailCanon Camera Museum records April 1990 marketing; no first-sale day is givenCanon Camera Museum records March 2000 marketing and explicitly says this replaces the earlier EF 100mm f/2.8 Macro. Its predecessor year of 1991 conflicts with the original lens's own Museum table, which gives April 1990

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