Tiffen Cokin P ND 0.9 Glass Filter (3-Stop) polarizer a process that involves grinding

a process that involves grinding optical glass flat to a tolerance of 1/10

is part of the Hollywood F/X series of filters

8 oz / 136 g

This filter is recommended when not using in-camera exposure metering or autofocus

Tiffen Cokin P ND 0.9 Glass Filter (3-Stop) polarizer a process that involves grindingThe Tiffen Cokin P ND 0. 9 Glass Filter enables the shooter to adjust exposure without affecting color balance. Neutral density filters are available in various stops to suit individual situations. Determining which neutral density filter yields ideal results for any given lighting situation takes knowledge, experience, and a collection of such filters. Choose the filter strength that adjusts the lighting to stay within the exposure latitude (greatest