"Scratch a Clear" Disposable Clear Filter 4×5.65"

Inexpensive lens and filter protection — production will always prefer to replace one of these rather than a $500 FX filter or front lens element.

Made from optically flat Polycarbonate Resin, it opens up creative possibilities: scratch a flare wherever you need it, or draw straight lines with a ruler. As good as glass optically, and fits any standard 4×5.65" matte box.