Neutral Densisty Exposure Adjustment

ND filter exposure correction table.

Overview

When using neutral densitly (ND) filters is is neccessary to adjust your normal exposure to compensate for the number of stops your ND filter reduces the light transmission.

Download this table for your reference:

Neutral Density (ND) Referance Chart

Pentax K-5 users the camera metering work for me with a Hoya NDX400 which actual surprised me.

For more information I recommend the following websites: