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

Most Kodak gelatin filters are available in 3 x 3 (75 x 75mm), 4 x 4 (100 x 100mm), 6 x 6 (150 x 150mm), and 14 x 18 (350 x 450mm).

These filters are available in increments from 1/3 stop to 13.33 stops exposure reduction.

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

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

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)