Now, we can categorize lenses as angular or wide angle. The wide angles can vary from 10mm to 20mm or 24mm, whether they are fixed or variable. Furthermore, there are others with a focal length of 8mm or less for example, however I prefer to categorize these into fisheye lenses.
Telephoto lenses can have a focal length range between 55mm and up, they can have focal lengths of up to 800mm or more. We have a good example with the Canon RF 800mm F11 IS STM telephoto lens.