Promaster 7209 62mm Circular Polarizing Filter Neutral Density Filters the SD300S uses its 300W

the SD300S uses its 300W COB LED output to create an equivalent to a 2000w tungsten light

and a plastic travel bag

two linear motors are used in the FE 40mm F2

Comes with attachable rear filter holder

Promaster 7209 62mm Circular Polarizing Filter Neutral Density Filters the SD300S uses its 300WLight rays which are reflected by any surface become polarized and PROMASTER Polarizing filters are used to select which light rays enter your camera lens. They allow you to remove unwanted reflections from non metallic surfaces such as water, glass etc. They also enable colors to become more saturated and appear clearer, with better contrast. This effect is often used to increase the contrast and saturation in blue skies and white clouds. PROAMASTER