Canon EF 40mm f/2.8 STM Lens

Canon EF 40mm f/2.8 STM Lens
The Canon EF 40mm f/2.8 STM is a remarkably slim “pancake” prime lens that delivers professional image quality in an ultra-portable form factor. Measuring less than one inch thick, this lens is the ultimate “walk-around” companion for street photography, travel, and everyday documentation. Whether used on a full-frame DSLR or an APS-C body, it provides a natural perspective and sharp rendering that far exceeds its diminutive size.

Ultra-Compact “Pancake” Design
Incredible Portability: The pancake design makes your DSLR more discreet and easier to carry, fitting comfortably into small bags or even a large jacket pocket.

Versatile Focal Length: On full-frame cameras, the 40mm focal length offers a “short-normal” view that is slightly wider than a traditional 50mm. On APS-C models, it provides a 64mm equivalent, making it an excellent choice for portraits.

Bright f/2.8 Aperture: The maximum aperture strikes a perfect balance between a compact profile and low-light capability. It allows for creative depth-of-field control and effective subject isolation.

Advanced Optics & Silent Focus
Precision Rendering: The optical path includes one aspherical element to minimize distortion and spherical aberrations, ensuring high sharpness and clarity from corner to corner.

Super Spectra Coating: Canon’s specialized coatings reduce flare and ghosting, maintaining rich contrast and neutral color balance even when shooting in harsh, direct light.

STM Stepping Motor: Optimized for both stills and video, the STM motor provides fast, smooth, and near-silent autofocus. When paired with a compatible camera, it enables fluid focus transitions that look natural on film.

Smooth Bokeh: A rounded seven-blade diaphragm produces a pleasing, circular out-of-focus quality, adding a professional touch to your shallow depth-of-field shots.

Technical Specifications
Focal Length: 40mm

Maximum Aperture: f/2.8

Lens Mount: Canon EF (Full-Frame & APS-C compatible)

Autofocus: STM Stepping Motor

Filter Size: 52 mm

Weight: Approx. 4.6 oz (130 g)