These are the best Olympus lenses with weather-sealing for creators who shoot in real-world conditions—rain, dust, sea spray, desert wind, or winter cold—and want pro-grade optics that won’t quit. Olympus/OM SYSTEM’s “PRO” lineup is the benchmark: constant-aperture zooms like the M.Zuiko Digital ED 7–14mm f/2.8 PRO (14–28mm equiv.), 12–40mm f/2.8 PRO II (24–80mm equiv.), 12–45mm f/4 PRO (24–90mm equiv.), and 12–100mm f/4 IS PRO (24–200mm equiv.) combine robust sealing with metal barrels, fluorine-coated front elements that shed rain and fingerprints, and fast, quiet MSC focusing—ideal for mountain weather, coastal sunrises, and handheld video in unpredictable environments. Tele shooters get the same confidence with the M.Zuiko Digital ED 40–150mm f/2.8 PRO (80–300mm equiv.) and the featherweight 40–150mm f/4 PRO, both sealed against dust and splashes for field sports and wildlife. For extreme reach, the M.Zuiko Digital ED 100–400mm f/5.0–6.3 IS (200–800mm equiv.) offers weather-resistant construction in a travel-friendly package, while the flagship M.Zuiko Digital ED 150–400mm f/4.5 TC1.25x IS PRO (300–1000mm equiv.) and the M.Zuiko Digital ED 300mm f/4 IS PRO (600mm equiv.) bring tank-like build, Sync IS, and gasketed controls trusted by birders and expedition crews. Prime shooters aren’t left out: the M.Zuiko Digital ED 20mm f/1.4 PRO (40mm equiv.) balances low-light speed with a compact, sealed body perfect for storms and street; the f/1.2 PRO trio—17mm, 25mm, and 45mm (34/50/90mm equiv.)—adds “feathered bokeh” to rugged construction for wedding days that run from drizzle to dance floor; the M.Zuiko Digital ED 8mm f/1.8 Fisheye PRO (16mm equiv.) lets you push creative angles in surf spray or snow; and macro specialists can trust the M.Zuiko Digital ED 90mm f/3.5 Macro IS PRO (180mm equiv.), whose sealing and Sync IS make handheld close-ups viable in dew, mist, and garden grit. Beyond the PRO badge, several non-PRO lenses are also dust- and splashproof, giving you sealed versatility on a budget: the M.Zuiko Digital ED 12–200mm f/3.5–6.3 (24–400mm equiv.) is a one-lens travel solution that shrugs off weather, the M.Zuiko Digital ED 14–150mm f/4–5.6 II (28–300mm equiv.) offers sealed all-day range for hikes and city breaks, and the M.Zuiko Digital ED 60mm f/2.8 Macro (120mm equiv.) pairs 1:1 detail with a weather-resistant barrel for field biology or product work outdoors. In practice, sealing means more than a gasket at the mount: Olympus uses multiple O-rings around rings and switches, internal zoom/focus designs to reduce air pumping, and fluorine coatings for fast wipe-downs, so your glass stays clear when the shot happens. Pair any sealed lens with an OM-1/OM-5 body for a system designed to work in rain and freezing temps, and unlock computational tools that rely on stability and confidence—Live ND for long-exposure waterfalls in drizzle, Handheld High Res for wind-shaken ridgelines, Starry Sky AF on frosty nights—without babying your kit. To choose wisely, match sealing depth to your subject and terrain: go PRO zooms (7–14, 12–40 II, 12–100) for mixed-weather travel and documentary; pick tele PRO glass (40–150/2.8, 300/4, 150–400) for wildlife where dust, mud, and spray are routine; use sealed primes (20/1.4 PRO, f/1.2 PRO set) when you need speed plus reliability; and reach for sealed all-in-ones (12–200, 14–150 II) when pack weight and flexibility trump outright speed. Whether you’re filming in sideways rain, hiking through volcanic dust, or shooting portraits on a windy pier, the best Olympus lenses with weather-sealing deliver pro-level durability, consistent color, and sharp, contrast-rich rendering—so you can keep creating when the forecast says “stay home.”