These masks allow you to perfectly mask single negatives of film of specific aspect ratios with our Pro Film Carrier 4×5. Simply replace the lower sheet of ANR from your Pro Film Carrier 4×5 with our Single Frame ANR Mask. No tools are required to switch your 4×5 glass out for a mask - simply rotate our CNC machined thumb screws on your carrier, and switch easily and quickly to the desired mask.

Made from anodized, precision CNC machined 6061 series aluminum, these masks feature aerospace manufacturing tolerances with a razor thin machined aluminum framing window cut for a specific film size. Each mask features a custom cut and edge-smoothed piece of ANR (Anti Newton Ring) glass.

Film is held absolutely flat with these masks thanks to our unique and custom engineered floating hinge mechanism on our Pro Film Carrier 4×5, designed to auto adjust or manually be adjusted to compensate for the thickness of your film, ensuring absolute sharpness for every scan.