E276 Blackout — light-blocking film for windows and frames
An opaque black film that passes just 0.1% of light. Tape it over windows, mount it on frames for negative fill, or cut it into cookies — a lighter, rollable alternative to boards and solids.
Image: Rosco
Takes light out of the scene
Rosco describes E276 as a light-blocking film used on windows and frames. With 0.1% transmission it effectively removes daylight from windows and kills bounce where you mount it.
- Blocks daylight from windows
- Creates negative fill for contrast
- Rigs as a lightweight flag on frames or stands
- Cuts with scissors or a knife into cookie patterns
- Rolls up for transport
- Wide roll covers large windows with fewer joins
On location, in the studio and in venues
Blacking out windows
Tape it into window frames on location to take full control of the lighting.
Negative fill
Mount on frames to absorb ambient and bounced light and add shape and contrast.
Cookies & flags
Cut patterns for shadow effects, or rig as a light, portable flag.
What it is — and what it isn’t
Use it for
- Blocking window light on location
- Negative fill on frames and stands
- Cut-out cookies and shadow patterns
- Temporary blackout in venues and studios
Don’t use it for
- Mounting directly on hot fixtures — use Blackwrap / Cinefoil
- Reducing light partially — use ND or WindowCling
- Permanent window tinting
- Situations needing a fabric solid that can be folded and re-used heavily
Getting the best result
- Clean the window frame or mounting surface so tape holds.
- Unroll and cut slightly oversize, then trim to fit.
- Tape into the window, or mount on a frame or stand for negative fill.
- For cookies, draw the pattern and cut with scissors or a knife.
- Keep it away from hot lamps; use Blackwrap close to fixtures.
Key details
| Range | Rosco e-colour+ |
|---|---|
| Filter | E276 Blackout |
| Transmission (per Rosco) | 0.1% |
| Description (per Rosco) | Light-blocking film used on windows and frames |
| Roll size | 60" × 20' (1.52 × 6.1 m) |
| Material | Black opaque polyester film, approx. 3 mil (76 µm) |
| Sizes | As listed above |
Common questions
Does E276 block all light?
Rosco lists transmission at 0.1%, so it blocks almost all light — effectively a blackout for windows and frames.
How do I black out a window with it?
Clean the frame, cut the film slightly oversize, tape it into the frame and trim the excess.
Can I put it on a hot light?
No. It isn’t designed for direct use on hot fixtures. Use Rosco Blackwrap / Cinefoil close to lamps.
What size is the roll?
60" × 20' (1.52 × 6.1 m).
Blackout vs WindowCling?
Blackout removes the light. WindowCling ND reduces it by set stops while you still see through the window.
Transmission figure is from Rosco. Not designed for direct contact with hot fixtures. Test tape and mounting on the actual surface before the job — results depend on surface and conditions. Figures and advice on this page are a guide only.
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