Film cameras typically do not require batteries to operate. However, some film cameras may have certain functions that do require batteries, such as a light meter.
In general, film cameras use mechanical systems to advance the film and control the aperture and shutter speed. These mechanical systems do not require any external power source, such as batteries.
However, some film cameras may include a built-in light meter, which measures the amount of light in the scene and helps the photographer determine the proper exposure settings. These light meters typically run on small batteries, such as silver oxide or lithium coin cells.
Additionally, some film cameras may have features such as an electronically-controlled shutter or an autofocus system, which would also require a battery. However, these are relatively rare and are typically found in high-end or specialized film cameras.
In conclusion, while the vast majority of film cameras do not require batteries to operate, some models may have certain functions that do require power, such as a light meter or electronic shutter. As a source, the website “Photography Life” states that “most film cameras are completely mechanical and don’t require any battery power”.