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Sonnar 135
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Sonnar 135

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Zeiss Sonnar 135mm telephoto lens designed by Paul Rudolph in 1929. Compact construction via Sonnar optical design; characteristic soft bokeh ideal for portraiture.

Technical Details

Classic Sonnar 135mm lenses achieve apertures between f/2.8 and f/4, with modern versions up to f/1.8. The minimum focus distance is typically 0.8-1.0 meters with a reproduction ratio of 1:8. The characteristic Sonnar design with cemented elements and a large air gap between the front and rear groups allows for a physical length of only 80-120mm. Filter size varies between 52mm and 77mm depending on the manufacturer. The angle of view for full-frame is 15°, with a minimum aperture of f/16 to f/22.

History & Development

Paul Rudolph developed the Sonnar formula in 1929 as an evolution of his Plasmat design. The first 135mm Sonnar appeared in 1932 for Contax cameras with an f/4 aperture. Zeiss produced various versions until 1975, including the legendary 135mm f/4 Sonnar T* (1973). After Zeiss's withdrawal from 35mm photography, licensees like Kyocera/Contax took over production. Since 2005, Zeiss has been manufacturing Sonnar lenses again, initially for digital SLRs, and later for mirrorless systems.

Practical Use in Film

Cinematographer Roger Deakins used the Zeiss 135mm Sonnar T* for portrait shots in "The Shawshank Redemption" (1994) to achieve the characteristic background blur during prison conversations. The shallow depth of field at wide apertures effectively isolates protagonists from the background. Documentarians appreciate the compact design for discreet shots. The smooth bokeh and natural color rendition make the Sonnar 135 a top choice for emotional close-ups and reaction shots.

Comparison & Alternatives

Compared to modern telephoto lenses of the same focal length, the Sonnar 135 offers less sharpness in the image corners but a more characterful bokeh. Canon's 135mm f/2 L USM achieves higher sharpness performance, while the Sonnar excels with a more organic image rendition. Alternatives include the Zeiss Apo Sonnar 135mm f/2 (2006) or modern designs like the Sony FE 135mm f/1.8 GM. For a vintage look, the classic Sonnar remains unrivaled, while contemporary constructions are recommended for technical perfection.

From the crafts

Perspectives

Cinematographer

Das Sonnar 135 liefert mir bei f/2,8 bereits knackige Schärfe mit diesem unverwechselbaren, cremigen Bokeh, das digitale Objektive selten erreichen. Die moderate Lichtstärke zwingt mich zu bewussteren Belichtungsentscheidungen, was der Bildgestaltung zugute kommt. Ich setze es gezielt für Portraitsequenzen ein, wo der organische Look wichtiger ist als absolute technische Perfektion.

Director

Mit dem 135er kann ich Schauspieler emotional isolieren und ihre Gesichtsausdrücke vom störenden Hintergrund befreien, ohne dass die Unschärfe künstlich wirkt. Die diskrete Größe ermöglicht authentische Reaktionen, da sich die Darsteller weniger beobachtet fühlen als vor großen Teleobjektiven. Das warme Rendering unterstützt intime Momente perfekt.

Producer

Ein gebrauchtes Sonnar 135 kostet 800-1500 Euro versus 2000+ für moderne Alternativen bei vergleichbarer Bildqualität für unsere Zwecke. Die kompakte Bauweise reduziert Gimbal- und Stativ-Anforderungen, spart also Equipment-Kosten. Allerdings ist der manuelle Fokus zeitaufwändiger als moderne AF-Systeme, was bei straffen Drehplänen berücksichtigt werden muss.

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