Manual adjustment, all metal structure, optical glass multi-layer MC coating film.
Wide range usage, lens with T2 mount, can install on telescope, for observation of moon, through standard adapter ring, can installed for EF-S mount camera, used for shooting long distant objects.
High quality aluminum alloy body, exquisite with texture.
With 420-800MM super telephoto zoom, telephoto lens conducive to shooting long distant scenery, wild animal, concerts, bird watching, etc.
Compact appearance volume designed, convenient to carry, foot frame fixed.