Canon RF EF-M 28mm f/3.5 Macro IS STM 28mm

The Canon EF-M 28mm f/3.5 Macro IS STM is a tiny macro monster with 1.2x magnification and a built-in ring light. It's the best macro lens you can get for the EF-M mount, scoring in the 95th percentile for macro performance. Just know you're buying into a dead system, and shop around because prices swing from USD 313 to USD 655.

For macro work, this lens is a standout. Our database puts it at the 95th percentile for macro performance, which is about as good as it gets. The 1.2x magnification is the headline spec, and it delivers. Sharpness up close is excellent, helped by the 2 aspherical elements and 1 ED element. The STM autofocus is smooth and quiet enough for video, though it's not lightning fast. The 5-blade diaphragm is a weak spot for bokeh, and the f/3.5 aperture means you're not getting much background separation unless you're right on top of your subject. The built-in macro lights are genuinely useful, not a gimmick.

Stacked against the Sigma Contemporary 18-50mm f/2.8 DC DN or the Tamron 17-70mm f/2.8, this Canon is far more specialized. Those zooms are versatile workhorses, but neither can touch the 1.2x magnification here. The Viltrox AF 35mm f/1.7 XF is faster and cheaper, but it's a different mount and not a macro lens. If you want a dedicated macro prime on EF-M, there's really nothing else like this. The trade-off is that you're buying into a mount with no future.

Pricing on this lens is all over the place. We're seeing USD 313 to USD 655 across three listings, which is a wild spread for the same optic. At the low end, it's a steal for what you get. At the high end, you're paying a premium for a lens on a discontinued mount. If you can find it around USD 313, grab it. If you're looking at USD 655, you should probably reconsider your life choices, or at least wait for a sale.

The Canon EF-M 28mm f/3.5 Macro IS STM is a tiny lens with a big party trick: 1.2x magnification. That's more than life-size, which means you can get stupidly close to your subject and still nail focus. At 120g, it's basically a lens cap with ambitions. The built-in ring light around the front element is a clever touch for macro work, and the hybrid IS helps when you're hand-holding at close range.

But here's the thing. This is an EF-M mount lens, and Canon has all but abandoned that system. If you're already in the EOS M ecosystem, this is one of the most fun lenses you can buy for it. If you're not, you're buying into a dead end. The f/3.5 max aperture is also a bit slow for a prime, though for macro that matters less than you'd think.

Skip this if you're not already invested in the EF-M system. Canon has moved on to RF mount, and buying into a dead mount in 2025 is a tough sell. Also skip it if you want a general-purpose walkaround prime. The f/3.5 aperture and 5-blade diaphragm make it a mediocre choice for portraits or street photography. And if you need weather sealing for outdoor macro work, look elsewhere because this lens has none.

If you're already shooting on an EOS M body and want to get into macro photography, this lens is a no-brainer. It's tiny, sharp, and the built-in light solves the biggest problem with handheld macro: getting enough light on your subject. The f/3.5 aperture and 5-blade diaphragm mean it's not a great general-purpose prime, but that's not what it's for. This is a specialist tool, and it's very good at its specialty.