Neutral-density filter made of multi-coated glass, 52 mm, extension of exposure time by factor 4
Neutral-density filter made of multi-coated glass, 52 mm, extension of exposure time by factor 8
High-quality ND filter ND8 52 mm, extends expose time by 3 f-stops
High-quality ND filter ND4 52 mm, extends expose time by 2 f-stops
High-quality ND Fader 52 mm +2 to +8 f-stops, extends expose time by +2 to +8 f-stops
Neutral-density filter made of multi-coated glass, 52 mm, extension of exposure time from factor 2 to 400
Neutral-density filter made of multi-coated glass, 52mm, extension of exposure time by factor 1000