Optima Parat is a half frame 35mm film viewfinder camera made by Agfa and introduced in 1963.
From the 1950's to the 1970's, Agfa made a series of cameras called the Optima. One camera in this series was a half-frame model. In many ways it was similar to the other half-frame cameras of the day.
It is a fully manual camera, in which the shutter speed is selected in range of 1/30 - 1/125s, bulb mode is also available. The lens is an extremely sharp 3-element Agfa Color-Apotar 30mm f / 2.8.