Matthews 12x12' Unbleached Seamed Muslin, Butterfly / Overhead Fabric Only

All fabrics were tested in a black chamber with an incandescent light source at one end and the fabric positioned 2/3 of the way between the source and the digital light meter.

6'x 6' butterflies measure approximately 5'8"x 5'8"
8'x 8' butterflies measure approximately 7'8"x 7'8"
12'x 12' butterflies measure approximately 11'8"x 11'8"
20'x 20' butterflies measure approximately 19'8" x 19'8"
20'x 20' bobbinets measure approximately 19'6"x 19'6"

A bleached muslin is a flat reflector whereas an unbleached muslin is a warm white reflector. Both can be used for bouncing a soft light or as a very soft diffusion type of textile.