Roscos R119, their most popular theatrical diffusion, is recommended for shorter throw distances when a gentle diffusion is desired or medium to long throws when a heavier effect is desired. Its softened beam edge maintains definition with a gentler gradient, making it excellent for blending washes like front or side light. Light Hamburg Frost provides a little extra blending power when spacing is a touch further apart. Lighter than R114, its additionally recommended for follow spots and slight diffuse focus for ellipsoidals. Roscolux is comprised of two types of plastic. More than 65% of the line is made from co-extruded polycarbonate plastic. The remainder of the line is deep dyed polyester.