Wikipedia
Telelens
Usage examples of "telelens".
They must have been using telelens and been able to read my lips, because that part of the tape was never shown.
Before I continue I should tell you that we attached to our telelens a cinematic spectroscope, the better to ascertain changes of elements taking place within the corona.
Blake put a telelens on the viewer and took shots of all within registering distance.