Nikon 58mm f/0.95 Noct on Z7: OOF PSFs

LensRentals has loaned me a Nikon 58 mm f/0.95 Noct for testing. I tested the Noct’s out of focus (OOF) point spread functions (PSFs) by mounting it on a Z7, focusing the lens to minimum focus distance (MFD), and aiming it at a LED mini flashlight about 25 feet away. I used the mechanical shutter.

Here is a set of three images composited with the lens wide open.

This is remarkable. There is no onion ring effect, and the mechanical vignetting is extremely low for such a fast lens.

Here are the extremes, in a composite of six images:

If we stop down to f/1.4, the mechanical vignetting virtually disappears:

Bravo, Nikon!