Noct is a term trademarked by

Nikon (, ; ), also known just as Nikon, is a Japanese multinational corporation headquartered in Tokyo, Japan, specializing in optics and imaging products. The companies held by Nikon form the Nikon Group. Nikon's products include cameras, camera ...

to describe a line of special camera lenses. The word was first used in the name of the Noct-Nikkor 58mm f/1.2 lens from the 1970s and re-appeared in 2018, when it was applied to the new Z mount 58mm f/0.95 S Noct.

References

{{Product-stub Nikon lenses