Basic focal length of cinematography lenses

The basic focal lengths of cinematography lenseses mainly include the following:
Ultra wide angle lens: The focal length is usually between 20-13mm, and the viewing angle is 94-118 degrees. Suitable for capturing vast landscapes and buildings, capable of exaggerating spatial sense, strong visual impact, large depth of field, and clear display of both foreground and background.
Wide angle lens: The focal length is generally between 24-40mm, and the viewing angle is 60-84 degrees. Suitable for shooting landscapes and buildings, able to accommodate more elements, with a wide visual effect.
Standard lens: focal length between 40-60mm, viewing angle of approximately 50 degrees. It is the most basic photographic lens, suitable for shooting general scenes such as daily shooting and street photography, with a perspective effect close to that of the human eye.
Medium focal length lens: The focal length is between 60-135mm, and the field of view and perspective are close to the human eye. Suitable for shooting close-up portraits and ID photos, especially the 85mm focal length, known as the "golden focal length" of portrait photography.
Telephoto lens: The focal length ranges from 135mm to 800mm, and even longer. Suitable for shooting close-up shots of distant scenery and people, capable of compressing the background and highlighting the subject, commonly used for sports events and wildlife photography.
The selection of these focal segments depends on specific shooting requirements and scenes.