Pentax 100 PL Polarizing Filter 40.5mm for Q Series Standard Prime Lens and Standard Zoom Lens
Light rays which are reflected by any surface become polarised and polarising filters are used to select which light rays enter your camara lens.
• They allow you to remove unwanted reflections from non-metallic surfaces such as water, glass etc.
• They also saturate colors and increase contrast.
•Polarizers come in two variations but have the same effect.