Olympus's Power Focus OM SLR — the OM-101, motorised manual focus, auto exposure, OM AF mount, 1988.
The Olympus OM-101 Power Focus is a 35mm film SLR from Olympus, sold in some markets as the OM-88, and a development of the OM-707 autofocus body. Released in 1988, it replaced full autofocus with a Power Focus system, in which a motor drives focus under the user's control rather than automatically. It used the same electronic OM system approach as the OM-707 aimed at simplified operation.
In specification terms, the OM-101 is a single-lens reflex for 35mm film using the OM autofocus-generation mount, with an electronically-controlled focal-plane shutter. Rather than autofocus, it offers Power Focus, where the photographer moves a slider to drive a motorised focus mechanism in compatible Power Focus lenses. Exposure is largely automatic with through-the-lens metering, and an accessory Manual Adapter could add manual exposure control. Being fully electronic, the camera depends on battery power to operate.
The OM-101 suits general and beginner users who want a simplified, motor-assisted focusing SLR with automatic exposure for everyday and travel photography. Its Power Focus concept was unusual, sitting between manual and autofocus, and works with the dedicated Power Focus lens range. Buyers wanting manual exposure should look for the separate Manual Adapter accessory.
On the used market, note the OM-101 is fully electronic and will not work without healthy batteries, so confirm it powers up, the Power Focus drive works and the shutter fires. Check which compatible lenses are included, as it uses the dedicated Power Focus range rather than standard manual OM lenses in the normal way. Inspect for perished foam seals, test the electronic shutter and metering, examine the prism and focusing screen, and check the film advance, rewind and any included Manual Adapter for correct operation.