Canon EF 40mm f2.8 STM Lens Review and Specs

Canon EF 40mm f2.8 STM Review

Main Features

40mm Focal Range

F2.8 Max Aperture

Filter Thread: 52mm

Max Format: 35mm FF

Canon EF Mount

Weight: 130g.

Diameter: 68mm

Length: 22mm

Min Focus Distance:0.3m

Max Magnification:0.18x

$179

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Canon 40mm f2.8 STM Overview

Canon 40mm f2.8 STM is an Auto Focus (AF) Standard Prime lens with 35mm FF max sensor coverage. When mounted on a 35mm FF sensor camera, it will give you an FF equivalent focal range of 40mm. With a max aperture of f2.8, this is a fast lens.
Canon 40mm f2.8 STM is not a weather sealed lens, so you have to be extra careful against rain and dust.

Pros and Cons of Canon EF 40mm f2.8 STM

PROs

Built-in Autofocus

Full-time Manual Focusing

Covers Full-Frame Sensor

CONs

No Weather Sealing

Hood is not supplied

Canon 40mm f2.8 STM Detailed Specifications

General
Brand	Canon
Lens Type	Prime
Price	$179.00
Lens Type	Standard Prime
Lens Mount	Canon EF
Max_Format	35mm FF
Focal Range	40mm
Image Stabilization	No
Colour	Black
Zoom Method	No Zoom
Power Zoom	No Zoom
Zoom Lock	No Zoom
Zoom Ratio	1.0X
APERTURE
Max Aperture	F2.8
Min Aperture	F22.0
Aperture Ring	No
Diaphragm Blades	7
Optics
Optical Elements	6
Optical Groups	4
Special Elements	1 aspherical element

FOCUSING
Min Focus Distance	0.3m
Max Magnification	0.18X
Autofocus	Yes
AF Motor Type	Stepper motor
Full Time Manual	Yes
Focus Method	Unit
Distance Scale	No
DoF Scale	No
PHYSICAL SPECS
Weight	130g
Diameter	68mm
Length	22mm
Weather Sealing	No
Filter Thread	52mm
Filter Notes	-
Hood Supplied	No
Tripod Collar	No

Canon EF 40mm f2.8 STM Alternatives in Canon EF Mount

Model		Focal Length	Max Aperture	Weight	Focusing	Price
	Canon EF 35mm f1.4L USM	35mm	F1.4	580gr	AF	$1,099.00
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	Canon EF 35mm f2 IS USM	35mm	F2.0	335gr	AF	$549.00
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	Canon EF 35mm f2.0	35mm	F2.0	210gr	AF	$253.99
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	Canon TS-E 45mm f2.8	45mm	F2.8	645gr	MF	$1,399.00
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	Tokina AT-X Pro 35mm f2.8 Macro DX	35mm	F2.8	340gr	AF	$390.89
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	Samyang 35mm F1.4 AS UMC	35mm	F1.4	660gr	MF	$399.00
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	Voigtlander 40mm F2 Ultron SL II	40mm	F2.0	200gr	MF	$449.00
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	Carl Zeiss Distagon T 1,435	35mm	F1.4	830gr	MF	$1,368.89
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	Carl Zeiss Distagon T 235	35mm	F2.0	570gr	MF	$595.89
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	Hartblei Superrotator 40mm F4 IF TS	40mm	F4.0	1550gr	MF	$0.00
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	Tamron SP 35mm F1.8 Di VC USD	35mm	F1.8	480gr	AF	$599.00
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	Tamron SP 45mm F1.8 Di VC USD	45mm	F1.8	540gr	AF	$599.00
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	Rokinon 35mm f1.4	35mm	F1.4	660gr	MF	$399.00
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	Sigma 35mm F1.4 DG HSM	35mm	F1.4	665gr	AF	$799.00
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