Hapo 66e

6x6cm folding camera with uncoupled rangefinder, introduced in 1953 and made by Balda for Hans Porst under the HAPO label. It is essentially a Balda Baldix camera, equipped with a 75mm color-corrected lens and Prontor shutter. The Hapo 66e has the Baldix' clever ratcheting film counter which obviates the need for checking frame count using the traditional external red window.