I have this Kalimar 1.7 For Canon EOS Japan TC and cant get it to work at all on my 1D2 and it hunts on my 70D and wont work at all on my 1d2. Ive tried to use it with my 70-200 2.8 and 50 1.8 No luck. Ive cleaned the contacts and dont know what else to do. It was part of a package I got a while back. Any help appreciated.