Cavision 4x4" Enhanced Range Neutral Density 1.2 Glass Filter

4-stop ND filter for cinematographers

This 4x4" Enhanced Range Neutral Density 1.2 Glass Filter reduces incoming light by four stops while preserving true colour fidelity. The 2 mm thick glass construction fits standard matte boxes and filter holders used in professional cinema and photography workflows. It is designed for film stock and digital sensors that require precise exposure control without colour shift.

Behaviour in sustained high-light scenes

The filter maintains uniform density across the entire frame during extended shooting in deserts, oceans or snowy landscapes. Consistent light reduction prevents exposure drift when the sun remains at peak intensity for long periods. Wider aperture settings stay usable throughout the take, keeping depth of field and bokeh rendering stable from the first frame to the last.

Thermals noise and power draw in normal use

As a passive glass filter it generates no heat, draws no power and produces no audible noise during operation. The solid 2 mm substrate resists warping under continuous bright sunlight, so optical performance remains unchanged. No active cooling or external energy source is required in any shooting environment.