Canon EF-S 24mm f/2.8 STM Review

The Canon EF-S 24mm f/2.8 STM is a compact, affordable pancake prime designed for Canon APS-C bodies. With a 38.4mm equivalent focal length, it sits squarely in the normal-to-slightly-wide territory, making it a versatile walk-around option for everyday shooting, street photography, and environmental portraits. At 169 dollars, it competes directly with budget primes from third-party makers but carries the appeal of native Canon optics and build.

The lens features an STM stepping motor for near-silent autofocus, particularly useful for video work, and a fast-enough f/2.8 aperture that delivers shallow depth of field without the bulk or cost of faster glass. Its single aspherical element and Super Spectra coatings aim to keep distortion and flare in check. The pancake form factor makes it easy to slip into a bag or keep mounted for low-profile shooting. For Canon shooters on APS-C bodies looking for an inexpensive, lightweight prime that handles both stills and video, this lens offers a practical entry point without the complexity or weight of zoom glass.