--- title: "Lumix S 20mm f/2.5" brand: "Panasonic" mount: L-Mount focal_length: 20 aperture: 2.5 angle_of_view: 94 lens_type: "Prime" lens_category: ["Ultra-Wide Angle"] weight: 142 year: 2026 weather_sealed: true image_stabilization: false price: 500 focus: "Auto" filter_size: 62 max_magn: 0.15 close_focus: 0.18 sku: "S-S20" diameter: 69.4 length: 41 date: 2026-09-17 draft: false author: "Jan Wedekind" featured_image: /lenses/panasonic/panasonic-20mm-f2-5.png --- Key Take-Aways: The Panasonic Lumix S 20mm f/2.5 is a compact ultra-wide prime for L-Mount, announced in September 2026 and shipping from October 2026 in black or silver. At 142g, 69.4mm in diameter and 40.9mm long it matches the footprint of the 40mm f/2 and the 18-40mm kit zoom, and shares their 62mm filter thread. The optics use 11 elements in 9 groups (3 aspherical, 3 ED) behind a 7-blade circular aperture, giving a 94° diagonal angle of view. It focuses down to 0.18m for 0.15× magnification, suppresses focus breathing for video, and adds a Lens Fn button and control ring (with Crop Zoom on compatible bodies). The barrel is dust-, splash- and freeze-resistant with a fluorine-coated front element. Launch price is $499.99, positioned as the wide companion to the 40mm f/2 for the S9. From Panasonic: > Expand your creativity with the LUMIX S 20mm F2.5, an ultra-compact full-frame wide-angle prime lens for photography, video, vlogging, travel, and everyday content. Its versatile 20mm focal length and bright F2.5 aperture capture immersive perspectives, attractive background blur, and strong low-light results for landscapes, architecture, interiors, street scenes, portraits, and social content. Weighing approximately 142g (0.31lb) and measuring 40.9mm (1.61in) long, it pairs with the LUMIX S9 for a portable full-frame system. Advanced optics deliver sharp, natural detail across the frame, while suppressed focus breathing supports smooth video focus transitions. A customizable Lens Fn button and control ring provide access to supported functions, including Crop Zoom on compatible LUMIX cameras. Dust-, splash-, and freeze-resistant construction and a fluorine-coated front element help keep you shooting in challenging conditions. > > - 20mm Ultra-Wide + F2.5 Bright Aperture: Capture expansive scenes with a practical ultra-wide perspective while enjoying strong low-light performance and beautiful background separation for photos and video. > - Ultra-Compact Full Frame Prime Lens: Take this full-frame lens anywhere with a compact 40.9mm (1.61in) design and an ultra-light approx. 142g (0.31lb) weight, ideal for travel, daily photography, and content creation. Available in black and silver. > - Optimized For Video Creators: Suppressed focus breathing and fast, precise, silent focusing help deliver smooth, natural-looking footage and reliable hybrid performance. > - Get Closer to the Story: A 0.18m (0.59ft) minimum focusing distance enables dramatic close-up images and videos with immersive perspective and enhanced visual depth. Enjoy sharp results from the center to the edges of the frame. > - Customizable Creative Control: Personalize your workflow with a Lens Fn button and control ring that support assignable functions including Crop Zoom on compatible LUMIX cameras. > - Ready for the Elements: Dust-, splash-, and freeze-resistant construction plus a fluorine-coated front element help keep you shooting in challenging conditions. > - Japanese Technology: Driven by world-renowned Japanese technology and a spirit of never-ending innovation, LUMIX inspires creators to tell their stories beautifully and vividly. [Official Website](https://shop.panasonic.com/products/lumix-s-20mm-f2-5-l-mount-camera-lens) [Panasonic Lens Firmware Updates](https://av.jpn.support.panasonic.com/support/global/cs/dsc/download/index4.html) Reviews: * Amateur Photographer: [Panasonic Lumix S 20mm F2.5 review – a fine, affordable wideangle that's not just for vloggers](https://amateurphotographer.com/review/panasonic-lumix-s-20mm-f2-5-review/), Andy Westlake, Sep 2026 * Digital Camera World: [Panasonic Lumix S 20mm f/2.5 review: a conveniently compact and lightweight lens that goes large on viewing angle](https://www.digitalcameraworld.com/cameras/lenses/panasonic-lumix-s-20mm-f-2-5-review), Matthew Richards, Sep 2026 * DPReview: [Panasonic introduces a new L-mount muffin prime, the 20mm F2.5](https://www.dpreview.com/news/panasonic-20mm-f2p5-l-mount-lens-announcement/), Mitchell Clark, Sep 2026 * PetaPixel: [The Panasonic Lumix S 20mm f/2.5 Is a Petite Prime Made for the S9](https://petapixel.com/2026/09/16/panasonic-lumix-s-20mm-f-2-5-is-a-petite-prime-made-for-the-s9/), Jeremy Gray, Sep 2026 YouTube: * Josh Cameron: [NEW Lumix 20mm F2.5 & Firmware!](https://www.youtube.com/watch?v=DtfEoNI4YxE), Sep 2026 * Julia Trotti: [LUMIX 20mm f2.5: A new small lens for LUMIX S9](https://www.youtube.com/watch?v=N9JSqgWQVZ0), Sep 2026 * Gordon Laing: [LUMIX S 20mm f2.5 REVIEW in-depth vs 20-60!](https://www.youtube.com/watch?v=3WXzmssFbs0), Sep 2026 * Richard Wong: [One more Compact L-mount lens! Panasonic Lumix S 20mm f/2.5 Review](https://www.youtube.com/watch?v=E_AVfzB0GoI), Sep 2026 * Matthew Ruderman: [The Lumix 20mm f2.5 Pancake](https://www.youtube.com/watch?v=IrXdvVe6Vls), Sep 2026 * Geeky Nerdy Techy: [The Lens Lumix S9 Shooters Were Waiting For? (Lumix S 20mm F2.5 Review)](https://www.youtube.com/watch?v=ScAXXIxFhUE), Sep 2026 * NigelBarros Too: [Now I can shut up about L-mount lenses (Lumix 20mm F2.5)](https://www.youtube.com/watch?v=kZzOe8c9HTg), Sep 2026 * Matthew Dangyou: [LUMIX Just Made the Perfect Everyday Prime](https://www.youtube.com/watch?v=RlxxWV1nsPs), Sep 2026 * Vu Nguyen | LET ME SHOW YOU: [Panasonic LUMIX 20mm f/2.5 Review: The Best Compact Lens for Video?](https://www.youtube.com/watch?v=mAI1bIwoQ8k), Sep 2026