Yongnuo YN11MM F1.8 Prime 11mm

A fast f/1.8 ultrawide for Sony APS-C that costs less than a fancy dinner. It's not the sharpest tool in the shed, but it's the best budget ultrawide prime on E-mount right now.

The f/1.8 aperture is the headline here, and it lands in the top tier of our database for light gathering. That's the whole reason to buy this lens. Autofocus is also a genuine standout, snappy and quiet thanks to the STM motor, which makes it a natural fit for gimbal work and run-and-gun video. Stabilization is solid too, well above average for a prime in this class. But the optical score tells the real story: it's about average. Sharpness in the center is fine, but corners get soft wide open, and you'll see some distortion and vignetting that the camera can partially correct. The 69mm minimum focus distance is also not great, so don't expect to get close to subjects. For the price, the performance is impressive where it counts, but it's not a lens for critical sharpness across the frame.

The Viltrox AF 13mm F1.4 is the most direct rival, and it's a better lens optically, but it's also heavier and pricier. The Sigma 18-50mm f/2.8 is a zoom, so it's more versatile, but you lose the ultrawide 11mm field of view and a full stop of light. The Sony 18-135mm is a travel zoom that covers way more range but is slow and boring by comparison. If you specifically want a fast ultrawide prime for astro, vlogging, or tight interiors, the Yongnuo is the value pick. If you need one lens that does everything, get the Sigma zoom instead.

At $298 USD, this lens is an absolute no-brainer for anyone who wants a fast ultrawide without spending Sony or Sigma money. The closest real competitor, the Viltrox 13mm F1.4, costs more and is bigger. You're giving up some optical polish and build quality, but you're getting 90% of the experience for a fraction of the price. If you're on a budget, stop overthinking it.

The Yongnuo YN11mm F1.8S is a budget ultrawide prime that gets the important stuff right. You get a genuinely fast f/1.8 aperture, a 16.5mm full-frame equivalent view on Sony APS-C, and autofocus that doesn't feel like an afterthought. For around $298 USD, it's one of the cheapest ways to get serious low-light ultrawide coverage on E-mount. The included wireless remote is a weird but welcome bonus for solo video shooters.

But this isn't a flawless lens. The optical quality sits right around the middle of the pack, and the build feels like what you'd expect from a budget third-party option. If you're pixel-peeping landscapes or shooting architecture for clients, you'll notice the corners. If you're vlogging, doing astro, or just want a fun wide prime, this thing is a steal.

If you're a landscape or architecture shooter who needs edge-to-edge sharpness, this isn't your lens. The corners get soft and the distortion is noticeable. Go grab the Viltrox 13mm F1.4 instead, or save up for a Sony or Sigma ultrawide. Also skip this if you shoot in rough weather, since there's no weather sealing at all.

The Yongnuo YN11mm F1.8S is the budget ultrawide prime we've been waiting for. It's not the sharpest lens in the drawer, and the build won't survive a monsoon, but the f/1.8 aperture, solid autofocus, and included remote make it a fantastic value for vloggers, astro shooters, and anyone who wants a wide view without breaking the bank. Buy it, shoot wide open, and don't pixel-peep the corners.