Eye AF at F1.2 — RF 85mm F1.2L DS
At f/1.2, the depth of field on an 85mm lens is approximately 2.5 centimeters at typical portrait distance. That is the width of a human eye. Focus must land on the near eye, precisely, every frame. The reason to own an RF 85mm f/1.2L DS is the RF 85mm f/1.2L …