What Are Optical Lenses? What Are Their Categories?

1.What are optical lenses?

Optical lenses are generally known as photographic lenses, or lenses for short, and their function is optical imaging.
The optical lens is an essential component of the machine vision system, directly affecting the quality of imaging, the implementation of algorithms and results

2.What are their categories?

1）Standard lens

The standard lens provides a similar perspective to the human eye, which is similar to what the naked eye usually sees.

2) Wide angle lens

Wide angle lens can provide a wider or larger view of the target area, your image can contain more content.

3) Zoom lens

A zoom lens is very versatile because it can adjust the focal length, ranging from 24-105mm. 24mm in length provides a wide angle view, while 105m provides a telephoto view.

4) Fixed focus lens

Fixed focus lens means that it is not able to zoom. Usually the price is also a bit expensive.

5) Telephoto lens

This type of lens allows you to zoom in and see things more carefully. Its working principle is similar to that of a telescope.

6) Macro lens

Macro lenses can help you get closer to small objects. For example, shooting raindrops, small insects, etc. There are more types of lenses including fisheye, portrait, etc., which can provide a wider field of view (180 degrees).

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