The Canon EF 40mm f/2.8 STM delivers performance through an incredibly compact and unobtrusive design for EOS DSLR cameras, ideal for discreet shooting or to avoid intimidating portrait subjects with larger lenses. The EF 40mm f/2.8 STM delivers high image quality from center to edge, with an  advanced lens configuration featuring an aspherical element, a bright 2.8 aperture, and optimized coatings that minimize ghosting and flare while providing exceptional color balance.

The ultra-slim, lightweight design is complemented by features such as a stepping motor for smooth and quiet continuous AF when capturing video with the EOS Rebel T4i, a seven blade circular aperture for beautiful soft-focus backgrounds, and a short minimum focusing distance of only 0.98 ft./0.30 m. The EF 40mm f/2.8 STM can be easily switched between Manual and AF, depending on the subject and shooting situation.

Specifications:

Focal Length & Maximum Aperture: 
40mm, 1:2.8

Lens Construction: 
6 elements in 4 groups

Diagonal Angle of View: 
57 degrees 30'

Focus Adjustment: 
Inner Focusing System

Closest Focusing Distance: 
0.98 ft./0.3m

Filter Size: 
52mm

Max. Diameter x Length, Weight: 
2.7 x 0.9 inch, 4.6 oz. / 68.2 x 22.8mm, 130g

Compatible with:
EOS 1V
EOS-1D X
EOS 5D Mark II / Mark III
EOS 7D
EOS 60D
EOS Rebel XS / T1i / T2i / T3i / T4i