|SONNAR||Optical design invented by Ludwig Bertele in 1929. Lenses that use this optical design are lightweight and of high speed. The Sonnar designation comes from German word Sonne which means "sun" and emphasized the lens speed of 2.0 (that was extraordinary rare in those days). In comparison with Planar the Sonnar design has more optical aberrations but the contrast and flare control is much better. In comparison with older Tessar design it has less chromatic aberrations and the lens speed is higher. Due to short working distance the Sonnar design could not be used in wide angle lenses for SLR cameras. That's why Sonnar lenses for SLR cameras are generally available with focal lengths of 135mm or more.|
|T*||The multi-layer coating is applied to the surface of lens elements. It boosts light transmission, ensures sharp and high contrast images, minimizes ghosting and flares.|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||34.3°-8.2° (35mm full frame)|
|Lens construction:||16 elements in 11 groups|
|Closest focusing distance:||150 cm|
|Number of diaphragm blades:||7|
|Type of autofocus motor:||Ultrasonic (Contax N)
|Full-Time Manual Focus:||Yes|
|Maximum diameter x Length:||Ø88 x 129 mm|
|Materials:||Metallic barrel, metallic mount|
|Filter size:||72 mm|
|Hood type:||Metal hood GB-75|
Design and Features
The Vario-Sonnar T* 4.0-5.6/70-300 lens is a compact tele-zoom lens with autofocus and high image quality for the Contax N1 SLR system. The zoom range of the Vario-Sonnar T* 4.0-5.6/70-300 lens covers all focal lengths of 35 mm photography which normally allow good results to be obtained without the use of a tripod. The smallest object size covered corresponds to the size of a postcard, the minimum object distance in front of the lens is 73 cm. The image quality obtained at this setting is remarkably good.
To achieve this high image quality, the Vario-Sonnar T* 4.0-5.6/70-300 lens also uses fluor-crown glass with anomalous partial dispersion. Distortion has also been very well corrected , allowing the Vario-Sonnar T* 4.0-5.6/70-300 lens to be used for product photographs, if necessary, if no macro lens is available or the longer focal lengths provided by the Vario-Sonnar T* 4.0-5.6/70-300 lens are particularly beneficial for picture composition.The optical and mechanical design is such that the lens requires relatively little space in its transport position. The Vario-Sonnar T* 4.0-5.6/70-300 lens is the ideal complement to the more wide-angle oriented Vario-Sonnar T* 3.5-4.5/24-85 lens and forms a lens pair with it, allowing the reliable performance of all tasks of 35 mm SLR photography – from landscape to small animals.
Preferred applications: All-purpose telephoto lens, traveling, landscape detail, snapshots, editorials, portraits, animals.
The type of autofocus motor is indicated according to Conurus. The lens can be converted to Canon EF mount with AF support by Conurus service.
Landscape photography1)▪Wild nature photography1) Distant landscapes with perspective compression effect
|User Manual. English, Adobe PDF, 390 KB|