Can someone please help me with the settings for this configuration. For FIRST successful efforts I will send a $25 amazon card.

#1 where the camera should be mounted on the rail.

#2 what the focus settings should be on the camera.
-----If we set it to infinity and turn to manual mode, some of our pano angles come out blurry, if we leave it in automatic mode the lens tries to spin and does so, however I believe this is putting a great deal of stress on our camera/lens motor.

Thank you in advance for your help. (please provide email address for card)