te‧le‧pho‧to lens /ˌteləfəʊtəʊ ˈlenz, ˌtelɪfəʊtəʊ ˈlenz $ -foʊtoʊ-/ noun [countable]
a long lens that you put on a camera so that you can take clear photographs of things that are a long way away

[TahlilGaran] Dictionary of Contemporary English ▲