Canon EF 28mm f/1.8 USM vs Canon EF 85mm f/1.4L IS USM

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EF 28mm f/1.8 USM compared with EF 85mm f/1.4L IS USM

	CanonEF 28mm f/1.8 USM	CanonEF 85mm f/1.4L IS USM
Overview
Released
Released	September 1995	November 2017
Optics
Lens type
Lens type	Prime	Prime
Focal length
Focal length	28 mm	85 mm
Maximum aperture
Maximum aperture	f/1.8	f/1.4
Minimum aperture
Minimum aperture	f/22	f/22
Optical construction
Optical construction	Ten elements in nine groups	Fourteen elements in ten groups
Special elements
Special elements	Aspherical lens element	High-precision glass-moulded aspherical lens according to Canon
Coatings
Coatings	–	Air Sphere Coating (ASC) according to Canon
Diaphragm
Diaphragm	Seven blades	Nine blades with a circular aperture
Angle of view
Angle of view	75° diagonal, 65° horizontal and 46° vertical	28°30′ diagonal, 24° horizontal and 16° vertical
Mount and compatibility
Mounts
Mounts	Canon EF	Canon EF
Image circle
Image circle	Full frame	Full frame
Compatibility
Compatibility	Canon EF cameras with full-frame or APS-C sensors	Canon EF cameras with full-frame or APS-C sensors
Teleconverter support
Teleconverter support	–	Not compatible with Canon extenders according to Canon UK's specification sheet
Adaptor support
Adaptor support	EF12 II extension tube gives 0.61–0.43× magnification; EF25 II gives 1.13–0.96×	Canon UK confirms EOS M compatibility using the EF-EOS M Mount Adapter
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	0.25 m	0.85 m
Maximum magnification
Maximum magnification	0.18×	0.12×
Optical stabilisation
Optical stabilisation	–	Yes
Autofocus detail
Autofocus detail	USM autofocus with mechanical full-time manual focusing. Canon's manual specifies turning the ring with the shutter half-pressed after One Shot AF	Ring USM with full-time manual override according to Canon UK
Focus distance detail
Focus distance detail	Physical length remains constant and the front element does not rotate according to Photozone	Internal focusing according to ePHOTOzine
Magnification detail
Magnification detail	–	Canon UK specifies 0.15–0.26× with EF12 II and 0.33–0.43× with EF25 II extension tubes
Stabilisation detail
Stabilisation detail	–	Four-stop optical stabilisation, tested at 85 mm with EOS-1D X Mark II to CIPA standards according to Canon
Design
Dust and moisture resistant
Dust and moisture resistant	–	Yes
Filter diameter
Filter diameter	58 mm	77 mm
Maximum diameter
Maximum diameter	73.6 mm	88.6 mm
Length
Length	55.6 mm	105.4 mm
Weight
Weight	310 g (better)	950 g
Controls
Controls	AF/MF switch, focus ring, distance window, depth-of-field scale and infrared focus index	AF/MF and stabiliser on/off switches, manual focus ring, distance window and depth-of-field markings
Weather resistance
Weather resistance	–	Dust and moisture resistance according to Canon UK
Dimensions detail
Dimensions detail	Maximum diameter × length in retracted state; dimensions and 310 g weight are lens-only. Front and rear caps add 21.5 mm according to Canon's manual	88.6 mm maximum diameter × 105.4 mm length; approximately 950 g according to Canon
Lens hood
Lens hood	Optional EW-63 II petal hood; reversible for storage according to Canon's manual	Supplied ET-83E hood according to Canon UK
In the box
In the box	–	Lens, ET-83E hood, E-77II front cap, Lens Dust Cap E, LP1219 pouch and user manual according to Canon UK
Release detail
Release detail	Canon Camera Museum records September 1995 marketing; no first-sale day is given	Canon Camera Museum records November 2017 marketing; a first-sale day is not given