How to choose an ND filter stop?

ND8

ND8 (3 Stop)

ND8 Filter provides a fixed 3 f-stop light reduction, which allows long exposure and motion blur techniques, perfect for landscape photography and cinematic effects in videography

ND64

ND64 (6 Stop)

6 F-STOP REDUCTION Neutral Density MD64 provides a fixed 6 f-stop light reduction, which allows long exposure and motion blur techniques in bright light. Recommended for landscape photography..

ND1000

ND1000 (10 Stop)

Reduce the amount of light by 10 stops, long-time exposure tool helps to achieve slow shutter speeds to be used on record objects movement such as waterfalls, presenting a silky smooth effect of flowing water.