Nikon Z 100-400 Lens Protection Ring

I really like the original author's work, and I modified it to fit the Nikon Z 100-400 lens.

The lens hood bayonet on this lens is quite far inward, so most lens protection rings won't work.

Also, I really dislike using this lens's hood; it's very soft and fragile, and it's troublesome to attach and reverse it every time.

I deliberately extended this protection ring to be even more prominent than a UV filter, so it can provide protection even if the front of the lens bumps into something.