Schneider Optics 4 x 4 ND-Filter 0.6 (2 stop)

Features

It has a Neutral Density of 0.6 (2 stops) and therefore reduces transmission by 75%. A common use for this filter is to allow the use of larger apertures, reducing depth of field, to allow selective focus and rack focus.

Sizes: Series 9, 4.5", 138mm Rounds, 4"x 4", 4"x 5.65" (Panavision size), 5"x 5", 5.65"x 5.65". Also in round screw-on rear mount 40.5 & 48mm

Strengths: ND.3, ND.6, ND.9, ND1.2, ND1.5, ND1.8