Canon

Canon EF 40mm f/2.8 STM

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Key specs

  • 6
  • 4
  • Internal;Unit
  • yes
  • Normal
  • Full-frame (35mm)
  • ;40 mm
  • no
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Colors

Canon EF 40mm f/2.8 STM Full Specifications

Image properties

Full-frame
, 40
0.18

Aperture

2.8
22
7

Optics

Fixed
6
4
1 Aspherical element

Focus

Internal, Unit
STP
11.81 in

Dimensions

Normal
Canon EF
Black
0.29 lb
2.68 in
0.87 in
2.05 in

Canon EF 40mm f/2.8 STM Online reviews

Canon EF 40mm f/2.8 STM review: Digital Photography Review
The EF 40mm f/2.8 STM was announced in June 2012, alongside the EOS 650D (Rebel T4i) SLR and EF-S 18-135mm f/3.5-5.6 IS STM zoom. These two lenses were Canon's first to use a linear stepper motor for focusing, giving rise to the 'STM' designation; this motor type allows silent refocusing during movie recording, and has therefore become widely-used in lenses for mirrorless cameras. This means that in principle the 40mm STM should be well-suited to working with the hybrid AF systems in Canon's recent cameras, including the 650D and its replacement the EOS 700D (Rebel T5i), the EOS M mirrorless model, and the diminutive EOS 100D (Rebel SL1).Read more

Canon EF 40mm f/2.8 STM Review | PhotographyBLOG
Expert review of the Canon EF 40mm f/2.8 STM lens.Read more