
Canon
Canon EF-S2428STM 24mm f/2.8 STM Pancake Lens
Slip a tack-sharp 24mm prime into your pocket and shoot APS-C street, travel, and documentary work without the bulk.
View price on Amazon
Affiliate Disclosure: As an Amazon Associate, Studio Supplies earns from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.
Notice a mistake? Let Us Know
Overview
Specifications
Brand
Canon
Model
EF-S 24mm f/2.8 STM
Mount
Canon EF-S
Focal Length
24mm
Maximum Aperture
f/2.8
Lens Construction
6 elements in 5 groups
Minimum Focusing Distance
0.52 ft (0.16 m)
Filter Size
52mm
Aperture Blades
7 (circular)
Frequently Asked Questions
What's the effective focal length on an APS-C Canon body, and what does that mean for how it shoots?
On any Canon APS-C body (crop factor 1.6x), the 24mm becomes approximately 38mm equivalent — very close to a classic 40mm or "normal" perspective. It's wide enough to include environmental context in portraits and street work, but not so wide that it distorts faces at close range.
How does the STM autofocus perform for video versus stills?
STM (Stepping Motor) autofocus was designed with smooth, near-silent video AF in mind — it won't produce the clunky hunting noise of older USM lenses on video. For stills, it's responsive in good light but noticeably slower in low light than Canon's faster ring USM lenses.
Is f/2.8 fast enough for indoor available light photography?
F/2.8 gives you meaningful separation from a standard kit lens and handles indoor ambient well in moderate light. In dim venues or at night, you'll be pushing ISO — f/2.8 isn't a substitute for an f/1.8 or faster prime if low-light performance is your primary need.
Does this lens have image stabilization?
No — the EF-S 24mm f/2.8 STM has no optical image stabilization. If your body has in-body IS (some Canon bodies do not), that will compensate; otherwise plan for higher shutter speeds in lower light.
Will this lens work on a full-frame Canon body?
It is an EF-S mount lens designed specifically for APS-C sensors. It will physically mount on full-frame Canon EF bodies but will produce severe vignetting and is not recommended for full-frame use.