Olympus's compact 35mm AF point-and-shoot — the mju/Stylus, 35mm f/3.5, clamshell, 1991.
The Olympus Infinity Stylus was a 35mm autofocus compact camera made by Olympus, launched in 1991 and sold in Europe and Japan as the mju (µ). The Infinity Stylus name was used in the North American market for the same camera. It was designed as a small, weather-resistant point-and-shoot with a clamshell cover, and it began a family of compacts that remained popular through the 1990s.
It is a full-frame 35mm autofocus camera, not half-frame, exposing standard 24x36mm images. It has a fixed 35mm f/3.5 lens, active infrared autofocus, and programmed automatic exposure with DX film-speed reading. A sliding clamshell cover protects the lens and switches the camera on, and a built-in flash offers several modes. The camera is battery-dependent and uses a lithium cell; there is no manual exposure control, and the optical finder shows the frame with autofocus and flash indicators.
The compact, splash-resistant body and quick clamshell operation suit travel, street and everyday documentary photography where a pocketable camera is wanted. Automatic focus and exposure make it simple to use, and the 35mm lens is a versatile everyday focal length. It favours convenience over manual control, so it appeals to photographers who want a grab-and-shoot 35mm camera.
On the used market, condition checks differ from the older selenium Pens: there is no selenium cell, but confirm the lithium battery contacts and door are free of corrosion, as battery leakage is a common fault in these AF compacts. Test that the autofocus locks and the flash fires and recycles, check the clamshell cover slides freely and the lens is clear of haze and fungus, and verify the light seals around the film door and the LCD frame counter still work.