Ultrawide Lens on Canon 1410XL-S

[Blith CLockwalk]

I have a Canon 1410XL-S and I'm getting a Nizo 3 Schneider-Kreuznach Ultrawide Lens. The thing is the Camea's lens is 65 and I need a 67 filter thread or I don't know what, I need to make the lens somehow fit on the Canon 1410XL-S. Where can I get filter threads? Any advice?