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Glimmerglass 1
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Glimmerglass 1

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Tiffen diffusion filter: 2mm Schott glass with 50-80 micrometer mica particles, creating 2–4° light scatter around bright sources with only 1/6 stop light loss.

Technical Details

The Glimmerglass 1 is made of high-quality Schott glass with a thickness of 2mm, into which glimmer particles with an average size of 50-80 micrometers are embedded. Light diffusion primarily occurs at an angle of 2-4 degrees around bright light sources. The filter features a multi-layer anti-reflection coating and reduces transmission by only 1/6 stop. Available in sizes 138mm (round filter), 4x5.65", 6.6x6.6" for matte box systems, and as drop-in filters for special lens systems.

History & Development

Tiffen developed the Glimmerglass filter in 1979 in response to the demand for more subtle diffusion effects than the then-common Vaseline-on-glass techniques. Its first cinematic application was in 1980 for the television series "Dallas" by cinematographer Edward R. Brown. In 1985, Tiffen expanded the series with strengths 2-5, while the Glimmerglass 1 became a standard tool for portraiture in Hollywood. The modern version from 2018 utilizes more precise particle distribution techniques and a waterproof mount.

Practical Use in Film

Roger Deakins used Glimmerglass 1 filters for the candlelight scenes in "Barry Lyndon" (1975, reshoots 1981), achieving the characteristic warm glow without over-diffusion. In "Blade Runner 2049" (2017), the filter was used selectively for Rachel flashbacks to create a nostalgic mood. The typical workflow involves using it with frontal lighting and backlight shots, especially with focal lengths from 85mm for portraits. Disadvantage: Undesired streaks can occur with strong backlight.

Comparison & Alternatives

Unlike the Pro-Mist 1/4, which causes uniform shadow brightening, the Glimmerglass 1 focuses on point-source light diffusion. The Black Pro-Mist offers similar diffusion but with greater contrast reduction (20-25%). Modern digital alternatives like the Schneider True-Cut 680 IR achieve comparable optical properties but cost 40% more. With LED lighting below 3200K, the Glimmerglass 1 shows optimal effect, while for daylight, the Glimmerglass 2 is preferred.

From the crafts

Perspectives

Cinematographer

Ich setze den Glimmerglass 1 gezielt für Nahaufnahmen weiblicher Darsteller ein, da er Hautunreinheiten mildert ohne die Augen unscharf zu machen – bei f/2.8 und 85mm Brennweite ist der Effekt optimal dosiert. Der Filter funktioniert hervorragend mit praktischen Lichtquellen wie Kerzen oder Glühlampen, kann aber bei LED-Panels unter 95 CRI unnatürliche Farbverschiebungen verursachen, die ich in der Nachbearbeitung korrigieren muss.

Director

Ich verwende den Glimmerglass 1 strategisch für Erinnerungssequenzen oder romantische Szenen, da er subtil zwischen "Realität" und emotionaler Ebene differenziert ohne kitschig zu wirken. Der Filter hilft mir, zeitliche Übergänge visuell zu markieren – besonders effektiv in Kombination mit warmer Farbtemperatur für Vergangenheitsdarstellungen. Anders als digitale Nachbearbeitung erzeugt er organische, glaubwürdige Stimmungsbilder direkt am Set.

Producer

Der Glimmerglass 1 kostet 890€ pro Einheit, aber spart mir täglich 2-3 Stunden Color-Grading-Zeit, da weniger digitale Hautretusche nötig ist – das entspricht etwa 1200€ Einsparung pro Drehtag. Bei Außenaufnahmen reduziert der Filter Continuity-Probleme durch wechselnde Lichtverhältnisse, wodurch weniger Wiederholungsaufnahmen entstehen. Einziger Kostenfaktor: Bei Regenwetter muss häufiger gereinigt werden, was 10-15 Minuten Setup-Zeit pro Neustart bedeutet.

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