Sigma 24mm f/1.4 DG HSM Review

The Sigma 24mm f/1.4 DG HSM is a fast, wide-aperture prime lens for Canon EF cameras. It excels in low light and creates nice background blur, but its autofocus is showing its age and it lacks image stabilization. At around $1,010, it's a solid but dated option.

If you're a Canon shooter looking for a fast, wide-angle prime lens, the Sigma 24mm f/1.4 DG HSM is a classic option that's been around for a while. It's a full-frame lens that gives you a 24mm field of view, which is great for environmental portraits, landscapes, and tight interior shots. With a maximum aperture of f/1.4, it's built for low light and shallow depth of field, though it's priced around $1,010, which puts it in a competitive spot against newer lenses from both Sigma itself and other brands.

This is a lens that's all about that wide aperture. The f/1.4 rating lands it in the 89th percentile for aperture speed, meaning it's one of the brightest lenses you can get at this focal length. It's a prime lens, so you're trading zoom versatility for optical purity and speed. Our data shows it scores best for portrait work (65.8/100), which makes sense given its ability to isolate subjects with a creamy background, but it's not a jack-of-all-trades. It's a specialist, and you're buying it for that specific look and capability.

Let's talk numbers. That f/1.4 aperture isn't just a spec sheet bullet point. In practice, it means you can shoot in dimly lit restaurants, at dusk, or indoors without cranking your ISO into noisy territory. The bokeh quality scores in the 82nd percentile, so when you shoot wide open, the out-of-focus areas are generally smooth and pleasing, which is a big part of the appeal for portrait and creative work.

Our benchmark data shows its weaker areas clearly. The autofocus performance is middling, sitting in the 46th percentile. It uses Sigma's older HSM motor, which is decent but not as fast or quiet as the latest linear motors found in newer lenses. There's no image stabilization (38th percentile), so you'll need steady hands or a higher shutter speed in low light. And as you'd expect from a wide prime, it's not a macro lens—it scores a low 22.2/100 in that category. This lens performs very well in the specific scenarios it's designed for, but don't expect it to be a do-everything workhorse.

At around $1,010, the Sigma 24mm f/1.4 sits in an interesting spot. It's not cheap, but you're paying for that f/1.4 aperture and the build of Sigma's DG HSM line. The value proposition really depends on what you're comparing it to. If you absolutely need f/1.4 at 24mm for your Canon EF camera, it's a proven option. However, for that money, you could also look at used copies, newer Sigma Art lenses with updated optics and autofocus, or even consider adapting it if you've moved to a mirrorless system. It's a good lens, but it's no longer the newest or sharpest tool in the shed.

This lens faces stiff competition. The Viltrox 35mm f/1.7 for Z-mount is much cheaper and offers a similar fast-aperture experience, though on a different mount and focal length. For Canon shooters, the real question is often between this Sigma and a Canon-branded 24mm prime. The Canon versions might have slightly better autofocus integration, but they're often more expensive for a similar aperture.

Then there are zoom lenses like the Tamron 17-70mm f/2.8 for Sony E-mount. It gives you way more flexibility with a constant f/2.8 aperture, plus image stabilization, but it's not as fast as f/1.4 and is for a different camera system. For a Canon RF user, the RF 35mm f/1.8 IS STM is a compelling alternative—it's smaller, has image stabilization, and is native to the RF mount, though it's a 35mm, not a 24mm. The Sigma wins on pure aperture speed, but loses on modern features like silent AF and stabilization.

Skip this lens if you shoot a lot of video, need fast and silent autofocus for events or weddings, or want image stabilization for handheld shooting. It's also not the best choice if you need a versatile, all-in-one lens—look at a standard zoom instead. Macro photographers should obviously look elsewhere, as this lens scores very poorly for close-up work. If you've moved to a mirrorless system like Canon RF, Sony E, or Nikon Z, consider native lenses that are designed for those mounts, as they'll offer better autofocus and often stabilization in a smaller package.

So, should you buy the Sigma 24mm f/1.4 DG HSM? If you're a Canon DSLR user who shoots a lot of low-light or portrait work and you've found a good deal on this lens, it can still deliver beautiful images. That f/1.4 aperture is the real star here. But for most people, especially those with newer mirrorless cameras, it's hard to recommend at full price. The autofocus feels dated, the lack of stabilization is a genuine drawback, and there are newer, sometimes cheaper, alternatives that offer better overall performance.

We'd say buy this lens if you're on a tight budget and can snag it used, or if you're deeply invested in the Canon EF system and need that specific focal length and speed. For everyone else, especially those looking for video features, fast autofocus, or image stabilization, it's worth looking at the competition first.