Final answer:
The most common shutter angle for film cameras is 180 degrees, commonly used in motion pictures. Shutter speed, aperture, and ISO are the three aspects of the exposure triangle in photography. Fast shutter speeds such as 1/250th of a second are required to freeze action in photos.
Step-by-step explanation:
The most common shutter angle for a film camera is referred to as 180 degrees. This angle is the industry standard for motion pictures and is used to create a balance between motion blur and sharpness in the moving image. The shutter speed and aperture are two of the three basic elements of photography that, together with ISO, form the exposure triangle.
When we speak of shutter speeds and still photography, 1/60th of a second is common for many scenarios. To freeze action, however, you would need a faster shutter speed, generally 1/250th of a second or faster, depending on the subject's speed. In film cameras that use actual film cartridges, like the Eastman Kodak Brownie cameras, controlling the shutter speed is crucial for obtaining the desired exposure and motion effect in the image.