Manufactured by Olympus from 1967 - 1984 is a fully-automatic 35mm compact camera,
It has an auto-exposure mechanism that is solar-powered by a selenium cell surrounding the lens, meaning the camera can run with essentially no batteries.
Aperture and shutter speed depends on the amount of light available.
June 1978, the shutter button was silver-coloured metal. After that date, all Trips had a black plastic button.
The camera offers no controls for setting exposure manually, though one can compensate by changing the ASA dial to a higher or lower value
The precise amount of light that triggers a change of the shutter speed is not documented in the user manual, but it is believed to be around EV 13.