Hoya (6 products at store)

The PROND100 has a 6 2/3-stop light reduction equal to a ND optical density of approx. 2.1.

Hoya gray filters are color-neutral filters. They have many uses. They allow you to extend the exposure time when stronger stops are not possible

Neutral density filter that reduces the light to an equivalent of 10 f-stops. Series for both photographers and filmmakers

Neutral density filter that reduces the light to an equivalent of 6 f-stops. Series for both photographers and filmmakers

Neutral density filter that reduces the light to an equivalent of 3 f-stops. Series for both photographers and filmmakers

A density adjustable filter with an ND range from 1.5 to 9 f-stops (ND3-400)