What are the photo lens?

photo lens can be mainly divided into the following categories:
Fixed focus lens: A fixed focus lens has a fixed focal length and cannot enlarge or reduce the image. This type of lens usually has a simple structure, can achieve a larger aperture and higher image quality, and is suitable for shooting scenes that require high image quality and specific viewing angles.
Zoom lens: The zoom lens can change the focal length, making it convenient to balance distance and distance. This type of lens has a complex structure, making it difficult to obtain a large aperture and slightly inferior image quality compared to fixed focus lenses, but it is easy to use.
Wide angle lens: with a focal length between 6-35mm, it has a wide viewing angle and is suitable for shooting scenes such as landscapes and buildings that require a large range of scenery to be accommodated.
Standard lens: The focal length is around 50mm, with a viewing angle close to the human eye, suitable for taking natural and intimate photos.
Telephoto lens: with a focal length between 70-300mm, suitable for shooting close-up shots at long distances, such as portraits, animals, etc.
Ultra long focal length lens: With a focal length greater than 300mm, it is suitable for capturing distant scenery such as wildlife.
Macro lens: used to capture subtle objects such as insects, flowers, etc., capable of presenting high magnification details.
Shift axis lens: used to correct perspective distortion and create special visual effects, commonly used in architectural photography and industrial inspection.
Fisheye lens: With an extreme viewing angle, typically below 16mm, it is suitable for capturing scenes with strong distortion effects, such as scenery, indoor gatherings, etc.