I got rid of all my canon gear except for the EFS 10-18mm lens for which I bought the fotodiox adapter on amazon. For some reason, the lens does focus to infinity at 10mm. It only focuses if I get very close to an object (at 10mm). At 18mm however, it focuses to infinity just fine. Any ideas why this is?
Camera setting:
Manual Mode
Canon lens is also on manual focus
I input the focal length of 10mm in the menu under lens mount adapter setting