Sigma APO Tele Macro 400mm f/5.6 AF Lens – Nikon F Mount – Made in Japan

Focal length: 400mm. Autofocus: Yes – requires Nikon body with built-in AF motor. Autofocus works on Nikon DSLR bodies with an internal AF motor (e.g. D700, D300, D800, D850). It will not autofocus on entry-level bodies such as D3xxx or D5xxx series.

eBay