Lenses have a variety of uses in photography and videography, depending on their type and design.
Photography Uses:
Wide-angle lens: Used to capture a wide picture, suitable for landscape and interior photography, can capture more information, and make distant objects very far away and close objects very large.
Standard lens: The focal length is about 50mm, the viewing angle is similar to that of the human eye, and the perspective relationship of the captured picture is very close to the scene perceived by the human eye. It is suitable for shooting humanities, portraits, etc., without perspective distortion, large aperture, and high quality.
Telephoto lens: Suitable for shooting distant objects, can achieve a telephoto effect, but relatively heavy, and very sensitive to camera shake.
Fisheye lens: The focal length is 16mm or less, the viewing angle is close to or equal to 180 degrees, and it is suitable for shooting some large scenes.
Tilt-Shift lens: It can correct the perspective of the picture by moving the lens optical axis, suitable for people, architecture and commercial photography.
Zoom lens: The lens can be freely extended to achieve the change of focal length, and it has strong adaptability, but the optical system is more complex, the cost is high, and the image quality is worse than that of fixed-focus lens.
Fixed-focus lens: There is only one fixed focal length, the image quality is stable, the picture is delicate, the grain is fine, and the metering is relatively accurate.
Monitoring purposes:
Wide-angle lens: It is used in places with small viewing distance and large viewing angle such as elevator cars and halls.
Standard lens: It is used in places such as corridors and community perimeters.
Telephoto lens: It is used for long-distance monitoring, and the focal length ranges from tens of millimeters to hundreds of millimeters.
Zoom lens: The focal length range of the lens is variable, which is suitable for areas with large depth of field and wide viewing angle.
Pinhole lens: It is used for covert monitoring.
Choosing the right lens can make the photography work more outstanding. Whether it is wide-angle, standard, telephoto, fisheye, shift or zoom lens, it has its unique uses and effects. Choosing the most suitable lens according to needs and preferences is the key.