The Rosco Roscolux R61 Mist Blue 20" x 24" gel sheet is excellent for general area washes. it's a very light, cool tint of blue with 66% transmission.
Roscolux is comprised of two types of body-colored plastic filters; extruded polycarbonate and deep dyed polyester, both of which provide superior consistency and durability when installed in front of a hot theatrical Film or TV light fixture.