How do you attach telephoto lens to Nikon coolpix l820?

The Nikon Coolpix L820 is designed with a fixed lens, so it does not have a mount for interchangeable lenses like a DSLR. However, you can attach a telephoto lens using a step-up ring or adapter that fits the camera's filter thread size. Make sure the telephoto lens is compatible with the Coolpix L820 and securely attach it to the front of the camera's lens for optimal results. Always check the compatibility and ensure that the lens does not obstruct the camera's functionality.