Product Description:

The EF 40mm f/2.8 STM from Canon is a sleek and versatile short-normal prime that is ideal for everyday, walk-around shooting. Its f/2.8 maximum aperture helps to realize its slim stature, and also suits working in difficult lighting conditions and offers control over depth of field for working with selective focus techniques. One aspherical element has been incorporated in the optical design, and helps to reduce distortion and spherical aberrations for high sharpness and clarity. A Super Spectra coating has also been applied, which helps to minimize lens flare and ghosting for improved contrast and color fidelity in strong lighting conditions. Additionally, benefitting both photo and video applications, an STM stepping AF motor is used to realize quick, accurate, and near-silent autofocus performance.

Short normal-length prime is designed for full-frame Canon EF-mount DSLRs, however can also be used with APS-C models where it provides a 64mm equivalent focal length.

Modestly bright f/2.8 maximum aperture benefits working in low-light, affords control over depth of field, and helps to keep the overall physical design compact and lightweight.

Pancake form factor measures less than 1" thick for an ultra-portable, versatile design.

One aspherical element limits distortion and spherical aberration in order to realize greater sharpness and accurate rendering.

Super Spectra coating has been applied to individual elements to minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions.

An STM stepping AF motor realizes smooth, near-silent autofocus that is complemented by a rear focus system, advanced AF algorithms, and a high-speed CPU for fast AF performance.

Rounded seven-blade diaphragm contributes to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques.

Canon EF 40mm f/2.8 STM Specs

Focal Length 40mm

Maximum Aperture f/2.8

Minimum Aperture f/22

Lens Mount Canon EF

Format Compatibility Full-Frame

Angle of View 57°

Minimum Focus Distance 11.81" / 30 cm

Maximum Magnification 0.18x

Optical Design 6 Elements in 4 Groups

Diaphragm Blades 7, Rounded

Focus Type Autofocus

Image Stabilization None

Filter Size 52 mm (Front)

Dimensions (ø x L) 2.69 x 0.9" / 68.2 x 22.8 mm

Weight 4.59 oz / 130 g

In the Box:

Canon EF 40mm f/2.8 STM Lens

Canon E-52 II 52mm Lens Cap

Canon Lens Dust Cap E (Rear Lens Cap)