Specialty grade, photographic black masking tape for use in photo studios, film processing labs and dark rooms. Also recommended as a chart tape, for quality photographic reproduction work, cropping and edging negative for contact printing, and sealing camera bellow and film holders against light leaks. Designed with an opaque black matte surface that ensures light-free masking, 743 is versatile, reliable and considered to be the "photographer's masking tape."