Arriflex 35
trademark
The Arriflex 35 was the first reflex 35mm production motion picture camera, released by German manufacturer Arri in 1937.
Function
It was built around the spinning reflex twin-bladed "butterfly" mirror shutter designed by Erich Kästner, chief engineer at Arnold & Richter Cine Technik (ARRI), Arri Group, set at 45 degrees horizontally to the lens axis. This mirror reflex system was invented in 1931. Modern standard models have a maximum shutter exposure opening of 165 degrees, (not 180 degrees as claimed in Arri manuals), the 35 IIC-BV model having a variable shutter. The mirror shutter allows the camera operator to see a viewfinder image equal to the recorded picture, without parallax, although there is noticeable image flicker in the viewfinder when the camera is running, caused by the two open exposure segments of the mirror shutter.
The camera utilizes a three lens turret with three aluminum Arri lens mounts (later 35 IIC/B with one stainless steel bayonet mount and two aluminum Arri mounts), and is capable of frame rates up to 80 frames per second with an accessory speed unit. Film magazines are for 200 ft or 400 ft loads. The DC motor is mounted downwards as a handgrip. Later flat base DC motor mount units were developed e.g. by the Cine 60 company, allowing the camera to have a lower profile, where the motor is mounted on the side of the camera body vertically upwards, allowing the camera to be mounted on standard tripod heads without a special head accommodating the handgrip motor, and providing a more compact profile for 'blimping'.
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