Optical Flat 4×5.65" — 4mm Standard

Affordable optical flat / clear protection to carry in your ditty bag at all times — always ready when those risky shots arise without warning.

The 4mm Standard is the everyday workhorse: durable, robust, and confident in a matte box. If weight isn't a primary concern, this is the one.

Made from Crystal Clear Optical Glass. Filter pouch & filter tag included.