hello， The Nikon-EOS adapter ring fit for nikon AI mount lens and canon EF camera. so the adapter ring fit for your Nikkor 55mm 3.5 ain’t lens on to canon 80d 

It’s a little tight on my a7III. I bought the Fotodiox brand for my Nikon glass and prefer the fit a bit more. Still works however, just ended up buying a Fotodiox for my Minoltas as well. 

FD-EOS fit for Canon FD mount lens and canon EF mount camera body. canon 60d is EF mount, so the adapter ring can work with your camera, but you need to check your lens mount. could you pls let us know your lens specific model? service(AT)kentfaith(DO NOT)com, Please note: It is not same between Canon FD mount and EF mount, this adapter ring is only for Canon FD mount lens, please contact us if you want to purchase for Canon EF mount lens. 

No the other way this is to be able to mount the Nikon lenses onto the micro 4/3 camera body 

I have come to find out that adapter is not compatible with the nikon d5200 and all things would be done manually