LEE Filters - 218 1/8 CTB, komplette Roll

The LEE Filters 218 1/8 CTB, presented as a comprehensive roll, represents an essential tool for lighting professionals seeking precise colour temperature adjustment and nuanced control over their illuminated scenes. Designed to convert the warmth of tungsten light sources to a cooler, more neutral daylight appearance, this particular filter provides a subtle yet significant correction. Its complete roll format ensures ample material for diverse applications, from large-scale theatrical productions and film sets to intricate studio work and event lighting, offering both versatility and economic value. This carefully engineered colour correction gel allows gaffers and lighting designers to achieve consistent colour rendition, integrate various light sources seamlessly, and craft specific atmospheric moods with meticulous accuracy.

CORE FUNCTIONALITY

The primary purpose of the LEE Filters 218 1/8 CTB is colour temperature conversion, specifically to subtly shift warm tungsten light towards the cooler end of the spectrum. CTB stands for "Colour Temperature Blue," indicating its role in adding blue to the light output, thereby raising its apparent colour temperature. The "1/8" designation signifies the filter's strength, representing a very light blue correction. This fractional correction is ideal for situations where a slight adjustment is needed to balance light sources, or to gently cool down a scene without a dramatic colour shift, offering fine-tuned control that often goes unnoticed by the untrained eye but makes a significant difference in professional results.

TECHNICAL SPECIFICATIONS

Colour Correction: This filter is engineered to convert 3200K tungsten light to approximately 3400K, or to subtly cool other warmer light sources.
Transmission: Typical light transmission for the 1/8 CTB is high, generally around 90-95%, ensuring minimal light loss while providing its intended colour correction.
Roll Dimensions: The complete roll typically measures 1.22 meters (48 inches) in width and 7.62 meters (25 feet) in length, providing extensive material for cutting to size as needed.
Material Composition: Manufactured from high-quality, heat-resistant polyester, designed to withstand the operational temperatures of professional lighting fixtures.
Durability: The material offers good resistance to fading and degradation under continuous high-intensity light exposure, ensuring consistent performance over its lifespan.

APPLICATIONS AND VERSATILITY

The LEE Filters 218 1/8 CTB roll finds extensive utility across a broad spectrum of professional lighting environments. In cinematography and photography, it is frequently used to subtly balance tungsten fixtures with natural daylight or HMI lights, achieving a more cohesive and natural look for skin tones and overall scene colour. For theatrical productions, it can soften the warmth of stage lighting, creating a crisper, more contemporary aesthetic or a specific atmospheric mood. Event lighting professionals employ it to fine-tune the colour balance of spotlights and wash lights, ensuring brand consistency or enhancing the visual impact of a venue. Its roll format is particularly advantageous for larger fixtures, custom cuts for unique applications, or for frequent use where individual sheets would be less economical.

QUALITY AND PERFORMANCE

LEE Filters are renowned worldwide for their exceptional quality, consistency, and reliability in colour filtration. The 218 1/8 CTB upholds this reputation through its precise manufacturing process, which guarantees consistent colour rendition across the entire roll and from batch to batch. This consistency is paramount for professional applications where repeatable results are critical. The filter's high transmission rate ensures that while colour is corrected, the overall light output remains strong, preventing the need for significant power compensation. Its heat-resistant properties contribute to a longer operational life, reducing the frequency of filter replacement and maintaining colour accuracy even during extended use under hot lamps.

CLASSIFICATION

This LEE Filters 218 1/8 CTB complete roll is classified as a professional-grade **Colour Correction Filter**, specifically a **Colour Temperature Blue (CTB)** variant of minimal strength. It falls under the broader category of lighting gels or colour media, essential accessories for any lighting professional in film, television, photography, theatre, and event production. Its primary function is to perform subtle colour temperature conversion, shifting warmer light sources toward a cooler, bluer hue. Distinguished by its fractional "1/8" strength, it provides a very light correction, positioning it as a precise tool for fine-tuning colour balance rather than dramatic shifts. The "complete roll" format further classifies it as a bulk, versatile material intended for extensive use, custom cutting, and large-scale applications, offering economic efficiency and flexibility over pre-cut sheets. This product is indispensable for achieving colour consistency between disparate light sources, adapting light to prevailing ambient conditions, and creating specific atmospheric effects with nuanced control, solidifying its place as a fundamental component in advanced lighting design workflows.