It was based on Bell & Howell's brilliantly designed 1917 prototype for a 17.5 mm camera intended for amateur use.
In 1925 the Eyemo, a hand-held 35 mm camera based on the design of the Filmo 70 was offered.
Spring wind is standard, although some Filmos have provisions for attachment of a 12 V DC or AC motor.
The camera was built to the most precise standards in the industry, and is still popular with student filmmakers.
Durable and ruggedly built, it was standard equipment for U.S. military combat cameramen from World War II thru Vietnam, and the workhorse silent news-gathering camera for TV stations from the 1950s through the 1970s, when electronic news gathering (ENG) on video tape began to replace 16 mm film.