Panasonic Lumix S 40mm f/2
Announced April 22, 2026
PixelMeter The PixelMeter is our 1–100 aggregate of reviewer scores from trusted publications and creators. Weighted by source tier — not a raw average, and not PetaPixel’s own review.
Reviewer Consensus
Strong
The Panasonic Lumix S 40mm f/2 is a compact and lightweight prime lens that provides a natural perspective for L-mount cameras. It serves as an affordable, high-performing everyday option that significantly enhances the portability of the Lumix S9 and other full-frame bodies.
Weighted from 10 reviewer scores
Pros
- Compact, lightweight, and portable design
- Sharp center image quality at f/2
- Weather-sealed construction with customizable controls
- Minimal focus breathing and distortion
- Reliable and fast autofocus performance
Cons
- Mixed bokeh quality and busy out-of-focus rendition
- Significant chromatic aberration and color fringing
- Strong vignetting and corner softness at wide apertures
- Lack of included lens hood and optical image stabilization
- Plastic build quality and lack of aperture ring
- Launch price $399.99 (USD)
- Focal length & aperture 40mm f/2
- Mount & coverage L-Mount Full-Frame
- Stabilization None
- Close focus 30 cm (0.17x)
- Filter thread 62mm
- Weight & size 144g · 69.4 x 40.9 mm (2.73 x 1.61 in)
What the Reviewers Say
All 10 expert reviews, weighted into the PixelMeter score.
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- PetaPixel 8.5/10
It turns out that the new 40mm f/2 is optically charming while also adding much-needed utility to the S9 platform. This lens is small, with plenty of useful controls, and it only costs $400.
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[T]he Panasonic Lumix S 40mm f/2 punches above its weight for a lens this size, weight, and price, and it becomes my favorite general-purpose prime lens for the L-mount system.
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This is Panasonic’s new 40mm f/2 prime lens for L-mount cameras, and perhaps the perfect combination for use with the smaller Lumix S9 cameras, as well as other Panasonic cameras, if you’re looking to make your camera setup smaller.
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The two things I like most about the Panasonic Lumix S 40mm f/2 are its focal length and aperture rating. I find that shooting with a 40mm focal length on full-frame cameras gives me a really natural perspective, neatly bridging the gap between a 35mm and 50mm lens.
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The Lumix S 40mm f/2 is a lovely little lens, and I think a lot of Lumix S users will enjoy its company.
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It would have been a dream combo for a lot of photographers and would have addressed one of the biggest complaints about the camera.
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It's a really great pairing for the S9. Or if you want to keep the size and weight down on a larger full-frame camera, it will do that also.
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For something this small, the results are genuinely impressive.
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[...] Panasonic Lumix S 40mm f/2 is a really nice lens on its own, but maybe even more importantly, a huge boost for the S9. I definitely intend to get one, and that means that I can only highly recommend it.
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Some days I absolutely love what comes out of it. Other days I'd rather use something else.
