Sigma AF-B Zoom 60-200mm F4-5.6 lens for Minolta

[tonyowen]

Does anyone know how to use the Sigma Zoom AF-B, f4-5.6 lens?
It has push-pull zooming and a rotating grip that moves a window through a range of distance scales..
The purpose and action of the rotating grip is not obvious though it does seem to have an effect on the focusing of the lens.
Any information welcome.
regards

 

[dxqcanada]

Yes, that is exactly what it is for ... manual focusing.

 

[tonyowen]

Yes, that is exactly what it is for ... manual focusing.

Thank you but there seems to be slight forward/backward movement of the 'rotating grip' that hinder/prevents focusing and also prevents the zoom from coming back to the 60mm position. Agreed that under auto every thing kinda works; but ........
regards
Tony

 

[dxqcanada]

Sounds like something got loose inside.