Cinematographer
From a DoP's perspective, this element is essential for the visual design. It allows me to consistently implement the desired color mood and aesthetic image.
Compact 150W tungsten Fresnel spotlight with 50mm lens and variable beam focus (spot/flood); ARRI 150 is the reference model.
Overview
A "150W Fresnel" refers to the smallest common class of tungsten Fresnel spotlights used in film and photography: a Fresnel lens spotlight with a 150-watt lamp output and a small lens. The most frequently cited reference model in the industry is the ARRI 150 from the ARRI Junior series (order number L1.79360). Characteristic of any Fresnel spotlight is the Fresnel lens (named after Augustin Fresnel), which produces a soft-edged, easily shapeable beam of light whose beam angle can be continuously adjusted between a narrow spot and a wide flood position by moving the lamp.
Its low power makes the 150W Fresnel the smallest tool in the classic tungsten Fresnel set (below 300 W, 650 W, 1 kW, and 2 kW). It delivers hard, controlled point light for accents, edges, and small areas, not for large-scale illumination.
Technical Specifications (Reference: ARRI 150)
| Feature | Value |
|---|---|
| Lamp Wattage | 150 W (Tungsten/Halogen) |
| Color Temperature | 3,200 K |
| Lens | Fresnel lens, Ø 50 mm (2") |
| Beam Angle | 14° (Spot) to 42° (Flood) |
| Lamp Base | GX6.35 |
| Weight | approx. 1 kg |
| Mount | 16 mm / 5/8" spigot |
| Dimmability | 0–100 % via external dimming system |
The values refer to the ARRI 150; functionally comparable 150W Fresnels from other manufacturers (e.g., Filmgear, Cinelight) accept the same accessories.
On-Set Usage
The 150W Fresnel is a precision tool for small, controlled lighting setups:
- Accent and Edge Lighting: Creates catchlights in the eyes (eye-light), separates actors from the background, or illuminates individual props.
- Tight Spaces and Sets: Easily positioned on small stands, Magic Arms, or within confined sets thanks to its approx. 1 kg weight and 16 mm spigot.
- Interviews and Product Shots: Used as a fine fill light where larger heads would deliver too much output.
Like all Fresnel spotlights, it accepts accessories: barndoors, scrims, gel frames, and snoots for further shaping the light. The spot/flood adjustment controls the beam angle and intensity; dimming is done via an external dimming system, with the tungsten light becoming warmer (redder) as it is dimmed.
From the crafts
Perspectives
Producer
This professional solution increases production efficiency and reduces post-production requirements. It allows for flexible, quick adjustments during the shoot.
Gaffer
As a gaffer, this is an indispensable tool in my daily kit. It allows me professional light control and quick adjustments on set, which saves time and ensures quality.
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Related terms
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Quiz
1. Zu welchem Department gehört „150W Fresnel"?
2. Wie viele verschiedene Fachperspektiven bietet dieser Eintrag?