Anyway, you have to do it manually, just connect the Nikon lens with the connecting ring of EOS fuselage.

Dark corners and conversion problems should not be serious. The adapter ring is very thin. I don't know if I can hold it well.

I haven't used that adapter, but I've heard of it ~

Get a Nikon fuselage ~ F5 F6 F 100 or something, it's quite cheap.