Produced from 1949

With the ALPA Prisma Reflex appeared one of the very first single lens reflex cameras with a pentaprism, a little time after the Contax S and Rectaflex.

This roof prism device, by virtue of the cross-over of internally reflected rays, gives an erect, laterally correct image. The viewing eyepiece has a view-angle of 45º - a typical ALPA feature up to the model 6c of 1960.