This may be a bit off topic but I thought people might be interested in the topic generally.
When I saw the name of this thread I was put in mind of some articles I have seen recently (PetaPixel?) about how some old pro cinema lenses used by Hollywood have been remounted in modern bodies for use on modern cameras and used in much the same way you and I might use old lenses for a special look and feel to a movie, or in our case, a photo.
I also saw this video recently which deals with a collector of vintage pro film (cine) lenses - none other than Todd Fisher, son of Eddie Fisher and Debbie Reynolds and brother of Carrie Fisher. Quite an interesting video overall and remounting (rehoused as he calls it) gets a mention early on.
https://www.youtube.com/watch?v=S_nY2kv_oO0
There seems to be a lot of this going around with firms specializing in new housings for old cinema glass.
https://nofilmschool.com/2018/09/-rehousing-lens-shops
https://www.youtube.com/watch?v=Coq_yqJxbpc
https://www.youtube.com/watch?v=vFyW83hNTKU