But there is always a market for single focal length lenses despite the convenience of such zoom lenses. The first one came with a built-in hood and no option for a removable tripod collar. The current version did away with the built-in hood and can be fitted with a tripod collar, which is optional.
Lens hood is also optional.
Unlike the EF lens, both FD versions incorporated only elements having low-refractive characteristics to correct chromatic aberrations.