User manual

Arnold & Richter Cine Technik GmbH & Co. Betriebs KG, Pulvermühle, 83071 Stephanskirchen
37
www.arri.com
1.2 Description and features of your Lamphead
The L7 range lampheads are equipped with an electronically controlled LED light source. You can use them like a conventional
tungsten Fresnel fi xture but with far higher energy effi ciency. The newly developed optical system offers a continuous
focus range of 15-50° half peak angle and real 'Fresnel' characteristics: an extremely uniform light fi eld and clean shadow
rendition. While the L7-T generates light with a color temperature of 3,200K, the L7-C has a tunable light source to generate 2,800K
to 10,000K color temperature and even saturated colored light. The light spectrum has been specifi cally designed for excellent
color rendition. All fi xtures can be controlled over USB interface, DMX 512 / RDM protocol or on-board control panel (if equipped).
1.2.1 Properties
 Focus
Versatility is the key element in traditional Fresnels, especially the ability to spot and fl ood the beam as needed. Whether it’s
a fl ood fi eld for a pullback shot or a tight spot for a bright highlight, the continuous focusability of the L7 performs
just as expected.
 Versatile beam characteristics
The L7 provides the same ability as conventional Fresnel lenses to cut set elements and shape the light fi eld
with barndoors and fl ags.
 Even light fi eld
Clear, defi ned shadows have traditionally been a trait only of single source tungsten and daylight fi xtures. ARRI L7 Fresnels
provide the same single shadow properties designers expect, delivering natural results.
 Vibrant colors, full-spectrum lighting
True-to-life color rendition is an outstanding feature of the L range, comparable to a full-spectrum tungsten source. The fully
tuneable White light of the L7 C can be adjusted for different skin tones, camera sensors and mixed-light environments. Full
gamut color mixing enables the rendition of all color shades, making color fi lters dispensible.
 Cool light beam
Like all LED light sources the L7 does not emitt infrared or UV radiation and thus no forward heat, making talent feel
comfortable in the light beam.
The ARRI L range combines all advantages of LED technology and the traditional Fresnel lens. It integrates seamlessly into esta-
blished working practices, so that designers can stick with their creative techniques and studios will have no need to change their
operating procedures.
1.2.2 Product features
 Focus knob
True Blue-style focus knobs provide precise adjustment and rapid fl ood-to-spot with only three turns. Knobs on both sides of
the fi xture ensure easy access from all positions.
 Sliding stirrup
The sliding stirrup design enables precise compensation for front-end accessories.
 Yoke
With an extremely slim profi le, the extruded aluminum yoke provides high strength without added weight. An optional pole-
operated yoke allows full operation of pan and tilt from the fl oor and is therefore a popular choice for many studios.
 Tilt lock
The high strength tilt lock provides extremely secure locking, eliminating movement and slippage and ensuring that the fi xtures
will stay where you put them.
 DMX control
All functions of the L7 are controllable through DMX. The L7 is also fully RDM compatible and is equipped with a feedback
channel for reporting all set parameters including system status and hours on the light engine.
 On-board control
For location applications the L7 is equipped with an on-board control for manual adjustment of intensity, color temperature and
plus/minus Green as well as hue and saturation.
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