Panasonic's constant f/2.8 bridge camera — 24x zoom covering 25-600mm equiv with a 1/2.3-inch sensor.
The Panasonic Lumix FZ330 (sold as the FZ300 in the Americas and Asia) was released in 2015 as a weather-sealed superzoom compact with a constant f/2.8 aperture Leica DC Vario-Elmarit 25-600mm equivalent zoom on a 1/2.3-inch 12.1MP MOS sensor. 4K/30fps. Built-in 0.39-inch OLED EVF (1,440K-dot). At approximately 724g with battery and card. Power OIS.
1/2.3-inch 12.1MP MOS sensor. Leica DC Vario-Elmarit 25-600mm equivalent zoom (24x), constant f/2.8 throughout zoom range. 4K/30fps (MP4); 1080/60fps. Built-in 0.39-inch OLED EVF (1,440K-dot, 0.70x magnification). Power OIS. Weather/splash sealed. Approximately 724g with battery and card. Fixed zoom lens; no interchangeable mount.
The constant f/2.8 aperture at 25-600mm range is the FZ330's differentiating specification: where competing superzooms use variable aperture that narrows at the telephoto end (often f/6.3 at 600mm equivalent), the FZ330 maintains f/2.8 at 600mm — a significant light-gathering advantage for telephoto video and stills in lower ambient light. The weather sealing adds outdoor durability uncommon in the superzoom compact category.
On the used market the Panasonic Lumix FZ330/FZ300 is available at mid-range superzoom pricing. Condition checks: weather seal condition (inspect gaskets and lens barrel), EVF display quality, zoom mechanism smoothness across 24x range, battery health. Fixed constant f/2.8 zoom; no interchangeable mount.