Schneider 250mm f5.6 Tele Xenar lens.

The 250 Tele Xenar is a compact tele lens for 5x4" use, and needs under 200m of extension for infinity focusing; this makes it particularly suitable with field cameras.

The Apo-Tele-Xenar is a 5-element telephoto lens system with an angle of view of 35 degrees, which can be used with a focal length of 400mm for formats of up to 13cm X 18cm and with a focal length of 800mm for formats of up to 30cm X 40cm. The apochromatic correction, achieved by the use of special optical glass, gives a clear reduction in the secondary spectrum. The resolution of these special lenses is not sensitive at the normal working aperture to changes in the object to image ratio, with the result that the Apo-Tele-Xenar 5.6/400mm can be used without hesitation at a range of 2 meters. The gray surface of the mounting serves to reduce thermal effects. To avoid reflections and to improve transmission the Apo-Tele-Xenar has a multi-layer, anti-reflection coating.

The high quality of the large format image can immediately be seen by looking at a picture taken using a large format lens. It will have the brilliance, full detail, precision, and sharpness that can only be achieved using this photographic medium. Most importantly, Schneider large format lenses are top-quality lenses that meet all the demands of the photographic industry. In large format photography there is no rigid connection between the lens and the film, compared to that of the small and medium formats. The free movement of lens and film standard enables better correction.

Features:

• Supplied in Copal 1 Shutter
• Image Circle @ f22: 190mm - covers up to 5x4"
  
• Filter Size: 82mm