When more filter
effects are desired than can be fit
in a two or three slot matte box,
combination filters make it possible.
Blending two or more filter
effects into one filter makes it
possible to have less glass in front
of the lens—an advantage when
using several filters simultaneously.
Schneider’s 85 Neutral Density combination
filters are precision ground
and polished to a perfect flatness
and parallel thickness, and feature
Schneider’s unique Edge Seal, which
prevents edge-chipping and
delamination, and also reduces
edge-reflections and flare.