Sigma 105mm EX DG Circular Polarising Filter
This product is no longer available or has been replaced by a newer model.
The Sigma 105mm EX DG Circular Polarising Filter reduces the glare and reflections from glass and water and other non-metallic surfaces. It deepens blue skies, and saturates the colours. The Sigma circular PL filter is designed to give best performance with AF Cameras. You can monitor the changes at different angles through the viewfinder as you rotate this filter. More