- when i want the skies can be a notch deeper blue ( depends on angle of placement ) and saturate foilages ( to various degree by cutting down on reflective surfaces )
- when i want to cut down reflections and glare from the surface of the water to reveal more details beneath
- when i am desperate to increase exposure but i got no ND and i cannot stop down any further ( or watever reason ) - the polariser cuts down light, acting as if like a mild ND filter
- when u put two polarisers together they can act as a fantastic variable ND filter :bsmilie:
but i realise apart from cutting down water reflections, i am increasingly using less and less polariser.