Rosco 8' White Diffusion Fluorescent Tube Guardare a very reliable and cost-effective system for easy control of tough lighting scenarios- especially under fluorescents. In addition to the financial benefits of the sleeves, they protect against the potential disaster of glass shattering by containing the lamp within the end caps.

Rosco sleeves are constructed of a solid polycarbonate tube within which is held the specific filter. The choice of filters and combination of filters is endless - there are complete Roscolux, Cinegel or E-Colour color filter lines - something for every venue, every photographer, every cinematographer.

For T12 Lamps    Over 300 Colors Available    UL94HB Rated Polycarbonate    End Caps Protect From Shattered Glass    Easily Trimmed with Scissors

Available in sizes for T12, T8 and T5 fluorescent lamps

The T8 and T5 sizes contain a UV filter that minimizes fading

All standard sizes (2, 4, 5, and 8') are easily trimmed to accommodate any size lamp

Related Questions and Answers

Q: 1. How well does this work outside in some wind?

A: The Westcott 7' Umbrella can hold up well with light wind.

Q: 2. Is it possible to use these filters with a scanner (epson expression 12000 xl) without fear of scratching the glass?

A: The filters will not harm the glass.

Q: 3. How flimsy are these? Will they slide in the front of 1X1 litepanels and stand up to constant use?

A: I dont think it will stand on its own. I use a C47 to clip it to the light panel.

Q: 4. Using this umbrella, about how wide of a light throw can you get? In short, if I was photographing a group that is 20 feet wide, and I had the umbrella facing the group (with enough wattage) do you think it would light side to side of the group? Specifically outdoors, where there is no bounce from ceilings?

A: These modifiers throw light about 180 degrees according to Wescott's website. They do recommend using multiple lights for large groups. So Mathematically, beam spread calculations say "beam width = angle x .018 x distance". To cover a 20 foot line of people you would need to place the light 6.1728 feet from the line. So yes! I place it directly behind me centered in the group, slightly above & tilted slightly down just over 6 feet away from the group.

Q: 5. What is the distance across side What is the distance across side to side when open to side when open? Not the arc measurement. ?

A: The Westcott 7' Umbrella (White Diffusion) when opened is about 68 inches wide.

Q: 6. Does this include the half density soft frost or 3004?

A: Rosco 3004 is not included in this sample pack.

Q: 7. The diameter is really 7.0' (2.1 m)? On Westcott site is specified that The umbrella size is determined using the arc size and that the Diameter is 70.0 / 177.8 cm). Please help me with the correct actual diameter size. Thank you!

A: The dimensions listed for the 7' umbrella on the Westcott site is the correct one. Except for the Westcott Deep Umbrellas, the umbrellas size is determined by the arc.

Q: 8. What is the recommended wattage needed to light up a group of people?

A: I use my umbrella with my studio strobes- usually set between 400 & 800 watt seconds. The light is soft, even and diffused.

Q: 9. how many stops diffusion is this umbrella?

A: 1 stop.

Q: 10. Would this work well for a conventional ParCan 64 light without melting or burning?

A: Never, ever let Rosco (or similar) material touch a halogen lamp—the material will melt, stick to the lamp, possibly stick to the fixture, and cause the lamp to fail. On the other hand, a tota-frame will hold tough spun 10 inches from a 1 KW Lowell fixture with no problem—or clipped to barn-doors. I suggest you try the different products out in pre-production.