Viltrox is officially adding the L-mount to its 28mm f/4.5 "Chip" pancake lens lineup today, June 16, 2026. The lens already exists for Sony E, Nikon Z, and Fujifilm X, but L-mount shooters — that is, anyone on a Lumix S5 II, a Leica SL3, or a Sigma fp — have been waiting. The wait is over.
The headline numbers are unchanged from the existing mounts: 60 grams total, 15.3mm thick, 28mm focal length, f/4.5 maximum aperture, six elements in six groups, two ED and two aspherical elements. Price is $99. Yes, ninety-nine dollars.
Why a Pancake Lens Matters in 2026
Look, I have written about pancake lenses before and the reaction is always the same: half the comments say "who needs a slow 28mm when you have a 24-70 f/2.8?" and the other half say "I bought this and it lives on my camera forever." The second group is right. A 60-gram lens that flattens to 15.3mm changes how you carry your camera. It changes when you bring it. A full-frame body with the Viltrox 28mm attached is barely bigger than a Fujifilm X100 — and that is a category of camera people pay $1,500 to get.
The Catch: No Filters, No Lens Hood
There are some real tradeoffs. The lens does not accept front filters — no 37mm thread, no clip-in filter support on most L-mount bodies. There is no lens hood and there is not really room for one. The aperture is f/4.5, so this is not a low-light beast. It is wide-ish, slow, tiny, and cheap, and you should know that going in.
What it is great for: street, travel snapshots, hiking (this is the category where a 60g lens becomes a religion), and as a "permanently attached" walkaround lens on a full-frame body.
Viltrox and the L-Mount Alliance, One Year In
Viltrox formally joined the L-Mount Alliance in September 2025 and started releasing AF lenses for L-mount shortly after. The 28mm f/4.5 was one of the first two lenses announced for the mount, alongside the AF 16mm f/1.8. L-mount users went from basically no third-party AF option to a real, growing lineup in under a year.
For Panasonic Lumix S5 II, S5 IIX, and G9 II users specifically, Viltrox plus Sigma plus Panasonic is starting to feel like a real three-vendor ecosystem. The L-mount alliance has not always felt like an alliance — for years it was basically Panasonic and Leica with Sigma tagging along. In 2026, with Viltrox, Astera, and 7Artisans all releasing L-mount glass, the mount is in its strongest position ever.
Who Should Buy This, and Who Should Skip
Buy it if: you shoot a Lumix S5 II or Leica SL3, you want a walkaround lens that is always on the camera, you hike or travel and weight matters, you have $99 to spare.
Skip it if: you need fast apertures for low light (get a 28mm f/1.8 or f/2 instead), you shoot a lot of video and want a parfocal lens (this is not it), or you already own a 24-50mm f/4 kit zoom and never take it off.
The Bigger Picture
Viltrox has been one of the most aggressive third-party lens makers of the last three years. They are not playing the slow trickle game. They are releasing 8-10 new products a year, at price points that undercut Sony, Canon, and Nikon by half or more, and — critically — the optical quality is now genuinely competitive. The 28mm f/4.5 is the cheap end of their lineup, but it is the one that ends up in more bags than any of the flagship primes.
If you are a L-mount shooter who has been waiting to see what the third-party AF world looks like, the wait is over. Start with this $99 lens. If it is any good — and by all accounts, including DPReview, Digital Camera World, and a few dozen YouTubers, it is — then the rest of the Viltrox L-mount roadmap starts looking very interesting.
Read the original Photo Rumors announcement.