These are the best Panasonic zoom lenses when you want flexible framing, fast and quiet autofocus, and weather-sealed reliability for travel, events, documentary, sports, and studio—across both Micro Four Thirds (Lumix G) and full-frame L-Mount (Lumix S). On MFT, the Leica DG Vario-Summilux 10–25mm f/1.7 and 25–50mm f/1.7 operate like a matched “prime set in two zooms,” delivering constant f/1.7 speed, near-parfocal behavior, long focus throws, minimal breathing, and shared front diameters that simplify matte boxes and filters; pair them for everything from interiors and interviews to low-light street and B-roll. For ultra-wide versatility with filters, the Leica DG Vario-Elmarit 8–18mm f/2.8–4 (16–36mm equiv.) is the landscape/cityscape workhorse, while the Lumix G Vario 7–14mm f/4 (14–28mm equiv.) offers lightweight drama for tight spaces. Mid-range coverage comes from the Lumix G X 12–35mm f/2.8 II/III and 35–100mm f/2.8 II/III (24–70/70–200mm equiv.), both with Power O.I.S. that teams with Body I.S. (Dual I.S.) for gimbal-like steadiness and snappy AF; the Leica DG 12–60mm f/2.8–4 adds travel-friendly reach and rich Leica color, while the Leica DG 50–200mm f/2.8–4 and Leica DG 100–400mm f/4–6.3 II extend into wildlife and field sports with close-focus “near-macro” and teleconverter support. Compact travelers can grab the collapsible 12–32mm f/3.5–5.6 or the 14–140mm f/3.5–5.6 II as lightweight all-in-ones. On full frame, the Lumix S PRO 24–70mm f/2.8 is the A-cam standard—sharp, sealed, and controlled breathing—paired perfectly with the Lumix S PRO 70–200mm (f/2.8 or f/4) for events and stage; the Lumix S PRO 16–35mm f/4 and Lumix S 14–28mm f/4–5.6 Macro handle architecture, vlogs, and close-focus cutaways at the long end. One-lens travel shooters should look to the Lumix S 20–60mm f/3.5–5.6, which uniquely starts at 20mm for cramped rooms and landscapes, and the Lumix S 24–105mm f/4 Macro O.I.S., whose 0.5× close-focus plus O.I.S. cover interviews to product inserts without swaps. For long reach, the Lumix S 70–300mm f/4.5–5.6 Macro O.I.S. and Lumix S 100–400mm f/4.5–6.3 O.I.S. deliver stabilized telephoto with crisp detail and practical weight. Across the lineup, Panasonic strengths shine: quiet linear motors for clean audio, selectable linear manual-focus response for repeatable pulls, micro-stepped apertures for flicker-free ramps, robust weather sealing, and stabilization ecosystems (Dual I.S. on G, Body I.S. + O.I.S. on S) that keep handheld footage smooth and stills sharp—so your zoom kit stays small, fast, and ready for anything.