Newark, New Jersey, April 21, 2026, 14:32 EDT
- Panasonic priced the Lumix S 40mm F2 at $399.99 and expects early June shipments.
- The full-frame L-Mount lens weighs 144 grams and is aimed at compact bodies such as the Lumix S9.
- Panasonic also put two more lenses on its roadmap: a compact wide prime and a large-aperture telephoto zoom.
Panasonic said on Tuesday it will sell the Lumix S 40mm F2, a compact full-frame L-Mount prime lens, for $399.99, with customer shipments expected to begin in early June. The fixed-focal-length lens, known as a prime because it does not zoom, is aimed at everyday stills and video shooting on smaller Lumix S cameras.
The timing matters because Panasonic’s full-frame Lumix S9 has leaned heavily on small lenses to make sense as a carry-everywhere camera. The new 40mm is 40.9 mm long and weighs about 144 grams, giving Panasonic a brighter, lighter alternative to its compact 18-40mm F4.5-6.3 kit zoom.
The F2 aperture — a wide opening that lets in more light and helps blur backgrounds — puts the lens in a more flexible slot for street, travel and portrait work. Panasonic said the 40mm focal length gives a natural field of view, close to how a scene appears to the eye, and pairs closely with the Lumix S9 body.
The lens uses seven elements in six groups, including three aspherical elements, and has a seven-blade diaphragm. It focuses as close as 0.3 meters and gives up to 0.17x magnification, useful for close detail shots but short of true macro work.
Panasonic also kept several control features on the small barrel, including a focus ring, an AF/MF switch and a focus button. The company said the lens has dust- and splash-resistant construction, a fluorine-coated front element to help shed dirt and oil, and the same 62mm filter diameter as the Lumix S 18-40mm kit lens.
For video users, Panasonic said the lens suppresses focus breathing, the change in framing that can happen when focus shifts, and uses micro-step aperture control for smoother exposure changes. B&H said preorders are open for black and silver versions.
The launch also updates Panasonic’s lens roadmap. The company said it is developing a compact wide-angle prime lens for the Lumix S9 and a large-aperture telephoto zoom, though it did not give launch dates for either product. Digital Camera World said the roadmap places the wide prime between Panasonic’s existing 18mm and 24mm lenses, while the telephoto appears around the 50-200mm range.
Early reviews were broadly favorable but not without caveats. TechRadar Cameras Editor Timothy Coleman wrote after testing the lens that “optical quality is impressive,” citing sharp output for a lens of this size, while noting that its conventional styling may not suit the more fashion-led Lumix S9 as well as its dimensions do. TechRadar
PetaPixel reviewer Chris Niccolls called the 40mm “worth a try” for S9 users or buyers wanting a simple compact prime. He also found flaws: longitudinal chromatic aberration, or color fringing in out-of-focus areas, was “pretty bad” in some shots, even when stopped down. PetaPixel
The competitive test will be value. Within L-Mount, TechRadar pointed to TTArtisan’s 40mm f/2 as a cheaper size match and Sigma’s Contemporary 45mm F2.8 DG DN as a higher-priced alternative, though the Sigma is heavier and slower on aperture. The wider L-Mount system is built around a shared standard used by founding members Leica, Sigma and Panasonic, with other manufacturers adding bodies and lenses.
Panasonic’s lens news also came alongside a Black Titanium edition of the Lumix S9 in Europe, according to Digital Camera World, which said availability outside Europe had not been announced. That keeps the immediate U.S. story focused on the lens and on whether Panasonic can make its small full-frame system feel less like a body waiting for the right glass.
The risk is that the 40mm does not settle the whole S9 lens problem. The lens lacks a normal hood mount, Panasonic gave no dates for the two roadmap lenses, and early testers still flagged fringing or flare in hard light. At $399.99, the lens is affordable for a first-party full-frame prime, but cheaper third-party optics and Sigma alternatives leave Panasonic little room for missed execution.
