An ultra-slim and lightweight design.
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 colour balance. A circular aperture (7 blades) for beautiful soft-focus backgrounds, and a short minimum focusing distance of only 0.98 ft./0.30 m.
|Lens mount||Canon EF|
|Lens type||Prime lens|
|Max Format size||35mm FF|
|Focal length||40 mm|
|Number of diaphragm blades||7|
|Aperture notes||Rounded aperture|
|Special elements / coatings||1 aspherical element|
|Minimum focus||0.30 m (11.81″)|
|Motor type||Stepper motor|
|Full time manual||Yes|
|Weight||130 g (0.29 lb)|
|Diameter||68 mm (2.68″)|
|Length||22 mm (0.87″)|
|Filter thread||52 mm|