Dear Customer, so sorry to tell you that this adapter won't allow your nikon 1 s1 lenses to mount to my canon t2i. 

We installed it on our Canon RF 24-105 lens and it was possible to use the lens hood on this lens because the lens hood attaches to the lens via the bayonette mount which is on the outside of the lens diameter and the magnetic filter adapter screws into the thread on the inside of the lens. 

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. 

Colin adaptor ring P series 062 

This 100% works on any of the A7 series. it works on my A6000, a7r2 and a7r3. If the body is E-mount it will work. If the body is A-mount it will not.