Sigma AF 28-200 Lens "iris motor" Questions

...iris motor when you insert the lens to the camera body. I just disarmed totally it, but the problmes seems to be with the electronics parts. If you are interested I will sell the lens to you or you ...

...I do not think it worth it the big problem apart of the mount is that the iris is worked by levers on the minolta and the Canon has a small motor to drive the iris best is to sell and get a canon ...