The X-820 is a mid-2000s Olympus compact digital camera, part of a family sold under several regional names, including the FE-280 and C-520, all sharing the same hardware under Olympus's Camedia-descended compact range. It targeted casual buyers wanting a simple pocket camera with a real zoom lens.
It carries an 8.0-megapixel sensor behind a lens offering 3x optical zoom, extended by a further 4x digital zoom, framed on a rear LCD monitor with automatic exposure modes aimed at point-and-shoot use. Storage is via a removable memory card, with power from a rechargeable battery pack typical of Olympus compacts of the period.
Its triple branding across X, FE and C model lines reflects how Olympus reused a single hardware platform across different retail markets in the late 2000s, rather than any unique optical or sensor difference between the variants.
Being a mainstream mid-2000s compact, used examples are inexpensive; buyers should check the battery still holds charge, the zoom lens extends and retracts smoothly, and the LCD screen is free of dead pixels or scratches before relying on it.