Kodak 3x3" (75mm) #96 Neutral Density (ND) 0.10 Wratten 2 Optical Gel Filter

Wratten 2 Improvements

• More rigid/durable

• Easier to handle

• Color consistent today, and 6 months from now as well

• Wratten 2 Optical Filters are less sensitive to humidity, less prone to static cling

• Fingerprint removal is also easier

Neutral Density filters have four main uses

• To enable slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars

• To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background

• To decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations

• To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure

Neutral Density Factors

• ND .10 (exposure adjustment = 1/3 stop)

• ND .20 (exposure adjustment = 2/3 stop)

• ND .30 (exposure adjustment = 1 stop)

• ND .40 (exposure adjustment = 1 1/3 stops)

• ND .50 (exposure adjustment = 1 2/3 stops)

• ND .60 (exposure adjustment = 2 stops)

• ND .70 (exposure adjustment = 2 1/3 stops)

• ND .80 (exposure adjustment = 2 2/3 stops)

• ND .90 (exposure adjustment = 3 stops)

• ND 1.0 (exposure adjustment = 3 1/3 stops)

• ND 2.0 (exposure adjustment = 6 2/3 stops)

• ND 3.0 (exposure adjustment = 10 stops)

• ND 4.0 (exposure adjustment = 13 1/3 stops)