Xitek published a new interview with Nikon on the new Nikkor Z 58mm f/0.95 Noct lens. Nikon initially wanted to implement autofocus in the lens, but the size would be “far beyond imagination”: Of course we have also studied AF, and driving the focusing lens itself can be done. But the action is quite slow, not as fast as manual operation. At the same time, the increase in size is far beyond imagination. It cannot be driven by the existing ultrasonic motor, and a larger actuator must be arranged outside the lens. Therefore, if you really want to achieve AF in the F0.95 lens, this optical type will not work. You need to reduce the focus lens and use the internal focusing method. But using this method will result in a longer overall length, which means that peripheral components will also increase, and the lens will still be larger and heavier than it is now. Even if such a lens is made, even if the product is very special, it may not be established as a product, so we gave up AF. A few other interesting bits (thanks Mark): The lens caps say Nikkor instead of Nikon. Nikon assigned a new designer on the Noct lens project in order to avoid preconceived ideas about lens design. Nikon Z-mount was initially designed to take advantage of f/0.95 lenses. The Noct lens is hard to make, it's basically handmade. The aspherical elements are made by a machine. The Noct mechanical design...
Published By: Nikonrumors - Friday, 3 July, 2020