Capture images with improved saturation with the Sony VF-67CPAM 67mm Circular Polarizing Glass Filter. It can be used with lenses having a 67mm filter thread. The filter eliminates unwanted reflections from non-metallic surfaces such as water or glass. Rotate the filter to change its density from 2.3 to 2.8 stops.
When placed in the optical path, many filters block a certain amount of light from reaching the lens. Filter factor relates to how much exposure compensation is required in order to adjust for this. Most cameras have TTL metering and will be able to do this automatically.