Canon EF 40mm f/2.8 STM

Lens Reviews / Canon Lenses i Lab tested
Lens Specifications
Name Canon EF 40mm ƒ/2.8 STM
Image Circle 35mm
Type Wide Prime ("Pancake")
Focal Length 40mm
APS Equivalent 64mm
Max Aperture ƒ/2.8
Min Aperture ƒ/22
Diaphragm Blades 7 (circular)
Lens Construction 6 elements in 4 groups, including 1 aspherical element
Diagonal Angle of View(Based on image circle) 57 degrees
Focus Details AF/MF with STM (Stepping Motor Technology)
Front Element Rotation
Zoom System n/a
Closest Focus 0.3m / 1.0 ft.
Magnification Ratio 0.18x / 1:5.6
Filter Size 52mm
Dimensions(Length x Diameter) 22.8mm x 68.2mm / 0.90 in. x 2.69 in.
Weight 130g / 4.6 oz
Notes Optional lens hood: ES-52
Typical Online Price US$200