The Rollei 35 is a 35mm miniature viewfinder camera built by Rollei. The original Rollei 35, when introduced at Photokina in 1966, was the smallest existing 135 film camera. Still today, the Rollei 35 series remain the second smallest 35 mm camera after the Minox 35. In 30 years, about 2 million Rollei 35 series cameras were manufactured. The Rollei 35 is today manufactured by DHW Fototechnik, the successor of Franke & Heidecke as small-batch production. The current version is the Rollei 35 Classic, an updated Rollei 35 SE.
In about 1960, when the first subminiature cameras for 16 mm film came to market, Heinz Waaske, chief engineer of German camera maker Wirgin, proposed that the purchasers of the 16 mm subminiature cameras, or even the half-frame Olympus Pen 35 mm cameras, were motivated not by the tiny film format but the size of the cameras. After having already engineered and designed the 16 mm Wirgin Edixa 16 as well as 35 mm single-lens-reflex cameras, he now set out to build a 35 mm camera in a housing only one third of the volume of the viewfinder cameras of the time.