|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:||27° (35mm full frame)|
|Lens construction:||5 elements in 4 groups|
|Closest focusing distance:||100 cm|
|Number of diaphragm blades:||8|
|Type of autofocus motor:||No motor (Contax G)
|Full-Time Manual Focus:||No information|
|Maximum diameter x Length:||Ø56 x 63 mm|
|Materials:||Metallic barrel, metallic mount|
|Filter size:||46 mm|
|Hood type:||Metal hood GG-3|
Design and Features
This lens features not only outstanding sharpness and brilliance, but also excellent field illumination even at full aperture. The Sonnar T* 2.8/90 lens with its field angle of 27o has been designed for the Contax G compact camera. The lens is particularly suitable for portrait photography, allowing successful head-and-shoulders and full-length portraits with a natural perspective.
In addition to portraiture, this lens can also be recommended for taking photographs at sporting events and the theater. The Sonnar T* 2.8/90 lens has been designed for use with the autofocus connection of the Contax G compact cameras.
Portrait photography▪Street photography▪Travel photography
|User Manual. English, Adobe PDF, 58 KB|