What Is a Camera Lens? A lens is a tool used to bring light to a fixed focal point. In a film camera, the lens sends the light to the film strip, while in a digital camera (like DSLRs or mirrorless cameras), the lens directs light to a digital sensor.Six Lens Types are shown below.
Plano Convex.
Plano Concave.
Bi-Convex.
Bi-Concave.
Positive Meniscus.
Negative Meniscus.What are basic lenses for photography?
These are the best beginner prime lenses for Canon, Nikon and Sony.
Canon EF 50mm f/1.8. ...
Nikon 50mm f/1.8D. ...
Sony 50mm f/1.8DT. ...
Canon EF-S 24mm f/2.8 STM. ...
Nikon 35mm f/1.8G AF-S DX. ...
Tamron 70-300mm f/4-5.6 Di LD. ...
Sony 55-200mm f/4-5.6 DT. ...
Canon EF 75-300mm f/4-5.6.What are the four major types of lenses?
The four major types of lenses are the short-focal-length lens, the middle-focallength lens, the long-focal-length lens, and the zoom lens.