Canon EF 40mm f/2.8 STM

Canon EF 40mm f/2

Lens Summary

Brand: Canon

Also Known As: Canon 40mm f/2.8

Lens Type: Prime Lens

Format: Full Frame / FX

Focus: Autofocus

Lens Mount: Canon EF

Release Date: 2012-06-08

MSRP Price: $149

Made in: Japan

Infrared Rating: Good

Production Status: In Production

Lens Description: A unique and indispensable addition to Canon\'s series of EF lenses, the new EF 40mm f/2.8 STM offers an ultra-slim and lightweight design. Incredibly compact in size, the EF 40mm f/2.8 STM delivers high image quality from the center to the periphery thanks to its advanced lens configuration including an aspherical element, a bright 2.8 aperture, and optimized coatings that minimize ghosting and flare while providing exceptional color balance. The EF 40mm f/2.8 STM\'s unobtrusive design helps the photographer avoid overwhelming their subjects with a large lens and to remain discreet in sensitive shooting situations with no compromise in performance. Its diminutive design is complemented by features such as a newly developed stepping motor for smooth and quiet continuous AF while capturing video with the Canon EOS Rebel T4i DSLR, a circular aperture (7 blades) for beautiful soft-focus backgrounds, and a short minimum focusing distance of only 0.98 ft./0.30 m.


Canon EF 40mm f/2.8 STM Specifications

Lens Specifications
* Supplied accessories may differ depending on country or area 
Lens TypePrime Lens
Focal Length40mm
Mount TypeCanon EF
FormatFull Frame / FX
Compatible Format(s)35mm Film / Full-Frame Digital Sensor Canon (APS-C)
Compatible with TeleconvertersNo
Image Stabilizer (Image Stabilization)No
Aperture Information
Aperture RingNo
Maximum Aperturef/2.8
Minimum Aperturef/22
Maximum Angle of View (Full Frame format)56.8°
Optical Information
Lens Elements6
Lens Groups4
Diaphragm Blades7
SWC (SubWavelength Structure Coating)No
Super Spectra CoatingNo
Focus Information
FocusAutofocus
Built-in Focus MotorYes
UltraSonic Motor (USM)No
Stepper Motor (STM)Yes
Internal FocusingYes
Minimum Focus Distance0.30m
Distance InformationYes
Filter Information
Filter Size52mm
Accepts Filter TypeScrew-on
Physical Characteristics
Weather / Dust SealingNo
Mount MaterialMetal
Tripod CollarNo
Dimensions68 x 27 mm
Weight130g
Other Information
Available in ColorsBlack
Supplied Accessories01/01/1900

Lens Construction

Canon EF 40mm f/2.8 STM

MTF Chart

Canon EF 40mm f/2.8 STM. chart

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