Canon 40mm f2.8 STM is an Auto Focus (AF)
Standard Prime lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount cameras.
Lens Mount
Canon 40mm f2.8 STM is compatible with cameras that have Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Focal Range
Canon 40mm f2.8 STM has a fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides an 35mm (FF) equivalent of 64mm.
Optical Image Stabilization
Canon 40mm f2.8 STM doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Alternatively, you can check the Canon 35mm f2 IS USM in Canon EF mount that have similar focal range but features Optical Image Stabilization.
Lenses Similar to Canon 40mm f2.8 STM With Optical Image Stabilization
Maximum Magnification Ratio
Canon 40mm f2.8 STM has a Max Magnification Ratio of 0.18x and has a minimum focusing distance of 0.3m. 0.18x means that the max magnification ratio is very low and not suitable even for modest close-up shots.
Aperture
Canon 40mm f2.8 STM has a max aperture of F2.8 and a minimum aperture of F22.0.
Optical Formula
Canon 40mm f2.8 STM's optical formula consists of 6 elements in 4 groups . Special elements used in this design is 1 aspherical element.
Lens Hood
Body Colour
Canon 40mm f2.8 STM is available in Black color.
Popular Comparisons of Canon 40mm f2.8 STM
Here is the eight most popular comparisons of Canon 40mm f2.8 STM amongst Camera Decision readers.