Hi.

I’m interested in using this lense in a small telescope (https://cults3d.com/en/3d-model/gadget/the-micro-scope-build-pack) but I am very many decades behind in photography.

I need to know what I’m looking for, is it fixed or zoom, is it compatable with EF mounts?

Do they even exist now?

How would I know what the mount is? Is it written on the lense body?

Atb.