|BIOGON||Optical design invented by Ludwig Bertele. Nowadays remains the blueprint in the history of optics. The lens with such wide angle of view that could capture maximum of life in one frame. The Biogon is a very compact and almost symmetrical lens design that has no distortions, exhibits beautiful color rendition and even resolution all over the frame. Can't be used with SLR cameras due to its short working distance.|
|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:||75.4° (35mm full frame)|
|Lens construction:||7 elements in 5 groups|
|Closest focusing distance:||50 cm|
|Number of diaphragm blades:||6|
|Type of autofocus motor:||No motor (Contax G)
|Full-Time Manual Focus:||No information|
|Maximum diameter x Length:||Ø56 x 31 mm|
|Materials:||Metallic barrel, metallic mount|
|Filter size:||46 mm|
|Hood type:||Metal hood GG-1|
Design and Features
The hallmark of Biogon T* wide-angle lenses is excellent image quality combined with a wide initial aperture and a wide field angle. This type of lens is not suitable for use with SLR cameras, as its design requires a short back focal distance (distance from the last lens vertex to the film plane). An outstanding Biogon T* lens has been developed for the Contax G compact cameras, incorporating the knowledge gained so far in the design of this type of lens.
The focal length f = 28 mm of this lens makes it ideal for photography where a dynamic perspective is required. The lens is also suitable for the close-range photography of interiors, as its constantly high image quality and excellent distortion correction extend up to the close range. The Biogon T* 2.8/21 lens has been designed for use with the autofocus connection of the Contax G compact cameras.
Typical Application1) Full to mid-body portraits
|User Manual. English, Adobe PDF, 181 KB|