Canon EF 135mm f/2L USM vs Canon EF 85mm f/1.8 USM

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EF 135mm f/2L USM compared with EF 85mm f/1.8 USM

	CanonEF 135mm f/2L USM	CanonEF 85mm f/1.8 USM
Overview
Released
Released	April 1996	July 1992
Optics
Lens type
Lens type	Prime	Prime
Focal length
Focal length	135 mm	85 mm
Maximum aperture
Maximum aperture	f/2	f/1.8
Minimum aperture
Minimum aperture	f/32	f/22
Optical construction
Optical construction	Ten elements in eight groups	Nine elements in seven groups
Special elements
Special elements	Two UD glass elements according to Canon Camera Museum	–
Coatings
Coatings	Super Spectra coating according to Canon UK	Super Spectra coatings according to Canon UK
Diaphragm
Diaphragm	Eight blades	Eight blades according to Canon
Angle of view
Angle of view	15° horizontal, 10° vertical and 18° diagonal according to Canon UK	–
Mount and compatibility
Mounts
Mounts	Canon EF	Canon EF
Image circle
Image circle	Full frame	Full frame
Compatibility
Compatibility	Canon EF full-frame and APS-C cameras	Canon EF cameras with full-frame or APS-C sensors
Teleconverter support
Teleconverter support	Canon's manual confirms EF1.4X II gives 189 mm f/2.8 and EF2X II gives 270 mm f/4	–
Adaptor support
Adaptor support	Canon UK confirms EOS M use with the EF-EOS M Mount Adapter	Canon UK confirms EOS M compatibility using the EF-EOS M adapter
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	0.9 m	0.85 m
Maximum magnification
Maximum magnification	0.19×	0.13×
Optical stabilisation
Optical stabilisation	No	No
Autofocus detail
Autofocus detail	Ring USM; mechanical full-time manual focus after One Shot AF while holding the shutter halfway according to Canon's manual	USM autofocus with full-time manual override according to Canon UK; Photozone identifies ring-type USM and rear focusing
Focus distance detail
Focus distance detail	Internal focusing with constant length and a non-rotating filter thread according to Photozone and ePHOTOzine	Lens length stays constant during focusing according to Photozone; front lens group does not rotate according to Canon Camera Museum
Magnification detail
Magnification detail	EF12 II provides 0.09–0.29× and EF25 II 0.20–0.41× according to Canon UK	–
Stabilisation detail
Stabilisation detail	No optical stabilisation according to ePHOTOzine's exact-model specification	No optical stabilisation according to ePHOTOzine's exact-model specification
Design
Dust and moisture resistant
Dust and moisture resistant	No	–
Filter diameter
Filter diameter	72 mm	58 mm
Maximum diameter
Maximum diameter	82.5 mm	75 mm
Length
Length	112 mm	71.5 mm
Weight
Weight	750 g	425 g (better)
Controls
Controls	Focus ring, AF/MF switch, distance window and 0.9 m–infinity or 1.6 m–infinity limiter according to Canon's manual	AF/MF switch, focus ring, distance window and depth-of-field markings
Weather resistance
Weather resistance	No weather sealing according to ePHOTOzine's exact-model test	–
Dimensions detail
Dimensions detail	82.5 mm diameter × 112 mm length, excluding caps according to Canon's manual	75 mm maximum diameter × 71.5 mm length; 425 g according to Canon Camera Museum
Weight detail
Weight detail	750 g for the lens only according to Canon's manual	–
Lens hood
Lens hood	Supplied reversible ET-78II hood	Hood is sold separately according to Photozone and ePHOTOzine
In the box
In the box	Lens, E-72U front cap, Lens Dust Cap E, LP1219 case, ET-78II hood and user manual according to Canon UK's box list	Lens, E-58II front cap, Lens Dust Cap E and user manual according to Canon UK
Release detail
Release detail	Canon Camera Museum records April 1996 marketing	Canon Camera Museum records July 1992 marketing; a first-sale day is not given