The Canon EF-S 24mm f/2.8 STM Lens is a compact pancake-style prime lens engineered for APS-C-format Canon DSLRs, delivering a versatile 38.4mm equivalent field of view that is perfect for street photography, travel, and everyday shooting. Its slim profile — measuring less than one inch thick — makes it one of the most portable lenses in Canon’s EF-S lineup without sacrificing optical quality.
Featuring a bright f/2.8 maximum aperture, an aspherical optical element for superior sharpness, and Canon’s whisper-quiet STM stepping autofocus motor, this lens excels in both photo and video applications. The Super Spectra coating further ensures rich contrast and accurate colors even in challenging, high-brightness lighting conditions.
Key features
- Versatile 38.4mm Equivalent Focal Length: Ideal for street, travel, and documentary shooting on any Canon APS-C DSLR with an EF-S mount.
- Ultra-Compact Pancake Design: Less than 1 inch thick, making it the perfect everyday carry lens for photographers who value portability.
- Bright f/2.8 Aperture: Enables confident shooting in low-light environments and delivers pleasing background separation for portraits and detail shots.
- STM Stepping AF Motor: Provides fast, accurate, and near-silent autofocus — ideal for video recording and discreet street photography — with full-time manual focus override.
- One Aspherical Element: Minimizes distortion and spherical aberrations for edge-to-edge sharpness and accurate subject rendering.
- Super Spectra Coating & 7-Blade Rounded Diaphragm: Reduces flare and ghosting for vibrant color fidelity, while the rounded diaphragm produces smooth, natural-looking bokeh.
Specifications
| Mount | Canon EF-S |
|---|---|
| Format Compatibility | APS-C |
| Focal Length | 24mm (38.4mm equivalent) |
| Maximum Aperture | f/2.8 |
| Aperture Range | f/2.8 to f/22 |
| Autofocus Motor | STM Stepping Motor |
| Optical Design | One Aspherical Element |
| Coating | Super Spectra Coating |
| Diaphragm Blades | 7 (Rounded) |
| Form Factor | Pancake (less than 1" thick) |
Frequently asked questions
Which Canon cameras is the EF-S 24mm f/2.8 STM compatible with?
This lens is designed exclusively for Canon APS-C-format DSLRs that feature an EF-S mount, such as the Canon EOS Rebel series, EOS 90D, and EOS 80D. It is not compatible with full-frame Canon bodies.
Is the Canon EF-S 24mm f/2.8 STM good for video recording?
Yes. The STM stepping autofocus motor delivers smooth, near-silent AF that is specifically well-suited for video use. It also supports full-time manual focus override and benefits from a rear focus system and high-speed CPU for responsive performance during filming.
How does the aspherical element improve image quality?
The single aspherical element in this lens actively corrects distortion and spherical aberrations, resulting in sharper images with more accurate rendering across the entire frame — especially noticeable in straight lines and fine details near the edges.
