Compact 500mm telezoom from Panasonic

PANASONIC has announced the longest telephoto zoom yet for its L-mount full-frame mirrorless system, in the shape of the Lumix S 100-500mm F5-7.1 OIS. It's impressively small and lightweight given its range, being similar in size to conventional 100-400mm zooms. Panasonic is also promising 'industry leading' optical image stabilisation, with up to 7 stops of shake reduction when shooting handheld.

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The lens measures 92mm in diameter by 196.1mm in length and weighs 1,285g on its own, or 1,595g with caps, hood and tripod mount. It boasts dust- and splash-resistant construction, and should work in temperatures down to -10°C. A fluorine coating helps keep the front element clean. The removable tripod ring has an Arca-Swiss foot t