Olympus AF-1 Twin

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The Olympus AF-1 Twin (Infinity Twin in the US) of 1988 had a biaxial (twin-lens) system so the user could switch between a 35mm wide-angle lens and a 70mm telephoto lens at the touch of a button. It also inherited the weatherproof design developed for the Olympus AF-1 (Nurepika) that was also used on other models in the Olympus AF series The AF-1 Twin had moulded plastic lenses, which Olympus used for the first time in this weatherproof series after the development of technology to overcome moisture absorption and other issues. A Quartzdate model was available.


  • Lens: Switchable between 35mm, f/3.6 (3 elements, 3 groups) and 70mm, f/6.3 (5 elements, 5 groups).
  • Autofocus
  • Auto-exposure
  • Auto-flash
  • Weatherproof
  • DX decoding of 35mm film, ISO 50-3200
  • Motordrive
  • XA-style lens protection
  • Tripod socket
  • Power: 3v Lithium CR123A or DL123A (2x)


AF-1 Twin Quartzdate on Olympus Global History.
AF-1 Twin on collection-appareils.fr