This is a Canon-made lens that has a magnification ratio of 0.12. The aperture of the lens is maximum ƒ/1.2 and minimum ƒ/16.
From London Camera Exchange
Canon RF 85mm f/1.2 L USM
TechintheBasket
Canon RF 85mm f/1.2L USM Lens
This product is also available at 10 unverified stores.