sigma 1.4x ex non-dg not working

[neil_g]

can everyone just confirm to me that a sigma 1.4x EX APO t/c should work with:

sigma 70-200 f2.8 EX DG APO "Macro"

sigma 120-300 f2.8 EX

before i go mad.. with it attached it is refusing to focus or confirm aperture value.

 

[gpa]

Yep, sounds like it's goosed. try cleaning the contacts

 

[neil_g]

yeah just cleaned them..

crapbags. i needed it for the weekend too.