SIGMA 86mm WR Circular Polarizer camera filter

86 mm WR Circular Polarizer

This SIGMA filter screws onto 86 mm filter threads and cuts reflected glare from non-metallic surfaces. The circular polarising layer lets autofocus and metering systems operate normally. A water- and oil-repellent coating on the front glass makes cleaning easier in damp or dusty conditions. Photographers who need to deepen blue skies or see through water and glass will find it useful.

Capacity and headroom

The 86 mm diameter fits lenses with matching threads; step-up or step-down rings are required for any other thread size. The filter provides up to two stops of light reduction when rotated to maximum effect, so exposure compensation or a slower shutter speed is needed in low light. It does not add colour correction or neutral density beyond the polarisation effect. Users who need variable ND, graduated filtration or threads larger than 86 mm must look elsewhere.