Launched in 1979, the Olympus OM-10 was part of a lineup of Olympus SLR cameras targeted toward the consumer market, rather than professional. The camera is largely built from plastic components to reduce both cost and weight. Additionally, the camera operates almost entirely in aperture priority mode only. One could buy a manual adapter control unit that plugged into the front of the camera, enabling manual control of the shutter speeds, but otherwise, the camera automatically set shutter based upon the selected aperture. The OM-10 uses the OM-mount system of excellent Zuiko lenses.
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Olympus OM10 with FC Unit
The Olympus OM10 is a nifty and inexpensive camera. While we definitely prefer our OM-1 and OM-2 cameras, the 10 can be perfect for the photographer on a budget. One thing to note about the OM10, particularly for students, is that it is an aperture-priority, "auto exposure" camera only. There is no manual control of the shutter, a feature often required by photography instructors.
But wait!
Olympus foresaw this concern and released a manual adapter for the camera. This device mounts to the front of the camera and gives you a little shutter speed dial for manual control. With this piece, you can use the camera either in a full manual mode or the auto aperture-priority configuration. If you are planning on getting an OM10, we definitely recommend tracking down one of these adapters.