Cinematographer
Aus DoP-Perspektive ist dieses Element essentiell für die visuelle Gestaltung. Es ermöglicht mir die gewünschte Farbstimmung und das ästhetische Bild konsistent umzusetzen.
Green correction filter (Plus Green) that adds a green cast to daylight and tungsten sources to balance fluorescent or HID lighting.
Overview
"Window Green" is a common trade and scene name for a full Plusgreen correction filter (lighting gel). The best-known product is Rosco Cinegel 3304, which is also marketed as "Tough Plusgreen," "Full Plusgreen," or "Windowgreen" depending on the distributor; the approximately equivalent counterpart at LEE Filters is the 244 Full Plus Green.
The filter adds a controlled green cast to daylight and artificial light sources (daylight HMI, Tungsten). The goal is to color-match these lights to fluorescent or other discharge lamps, whose spectrum has a characteristic green component ("spike"). This allows for the unification of mixed lighting situations on set, where practical fluorescent lighting remains in the frame and the film lights are intended to match it.
Principle of Operation: Plusgreen / Minusgreen
Fluorescent and discharge lighting produce a green cast that lies on the magenta-green axis (tint, in addition to the actual color temperature in Kelvin). There are two correction directions:
- Plusgreen (Window Green): adds green to match film lights to greenish practical lights.
- Minusgreen: the magenta counterpart (e.g., Rosco 3308 / CC30 Magenta), which filters out the green cast from fluorescent sources (on the lamp or lens).
Window Green is therefore not an effect or color filter, but a light correction filter for the tint axis. It is typically used at full strength; graduated versions (Half, Quarter Plus Green) exist.
Technical Data
| Characteristic | Rosco Cinegel 3304 | LEE 244 Full Plus Green |
|---|---|---|
| Function | Full Plusgreen / Window Green | Full Plus Green |
| Correction Effect | approx. CC30 Green | approx. CC30 Green |
| Transmission | approx. 76 % | approx. 74 % |
| Light Loss | approx. 0.4 stops | approx. 0.13 density |
| Typical Formats | Sheet ~20×24", Roll 48"×25' | Sheet 48"×21" (1.22 × 0.53 m), Roll 48"×25' |
Note: The values mentioned are from manufacturer or dealer specifications and may vary slightly depending on the batch.
On-Set Usage
Window Green is used when fluorescent tubes or other discharge lamps are a visible part of the set and are not to be replaced. The film lights are then gelled with Plusgreen so that their green component matches that of the practicals. Subsequently, the entire green cast can be corrected together – via the camera's white balance, using a magenta/minusgreen filter on the lens, or in grading.
Since the filter is made of heat-resistant, deeply dyed base material, it is designed for use directly on hot lights (e.g., over barndoors or in the filter frame). In modern practice with RGBW LED fixtures, the Plusgreen correction is increasingly achieved via the tint/green-magenta control of the device, but the physical gel remains relevant for Tungsten and HMI sources.
From the crafts
Perspectives
Producer
Diese professionelle Lösung erhöht die Produktionseffizienz und reduziert Post-Production-Anforderungen. Sie ermöglicht flexible, schnelle Anpassungen während des Drehs.
Gaffer
Als Gaffer ist dies ein unverzichtbares Werkzeug meines täglichen Handwerkszeugs. Es ermöglicht mir professionelle Lichtkontrolle und schnelle Anpassungen auf Set, was Zeit spart und Qualität sichert.
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Test your knowledge
Quiz
1. Zu welchem Department gehört „Fenstergrün"?
2. Wie viele verschiedene Fachperspektiven bietet dieser Eintrag?