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The Rodenstock Imagon is an
The Rodenstock Imagon is an achromat
An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to bring two wavelengths (typically red and blue) into focus on the same plane.
The most comm ...
doublet
Doublet is a word derived from the Latin ''duplus'', "twofold, twice as much",
* 420 mm H=6.0 (for 18×24 cm)
* 480 mm H=6.2 (for 24×30 cm)
''Understanding Boke.''
* Brian Lewington
{{DEFAULTSORT:Imagon Photographic lens designs Soft-focus lenses Rodenstock lenses
See also
* *Soft-focus lens
In photography, soft focus is a lens flaw, in which the lens forms images that are blurred due to spherical aberration. A soft focus lens deliberately introduces spherical aberration in order to give the appearance of blurring the image while ...
*Bokeh
In photography, bokeh ( or ; ) is the aesthetic quality of the blur produced in out-of-focus parts of an image. Bokeh has also been defined as "the way the lens renders out-of-focus points of light". Differences in lens aberrations and ...
*Depth-of-field
The depth of field (DOF) is the distance between the nearest and the furthest objects that are in acceptably sharp focus in an image captured with a camera.
Factors affecting depth of field
For cameras that can only focus on one object dist ...
References
Further reading
* Alfons Scholz: ''Lichtbilder mit dem Imagon''. vwi Verlag, Starnberg 1980External links
* Harold M. Merklinger''Understanding Boke.''
* Brian Lewington
{{DEFAULTSORT:Imagon Photographic lens designs Soft-focus lenses Rodenstock lenses