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- Rodenstock_Imagon abstract "The Rodenstock Imagon is an achromat doublet photographic lens design uncorrected for spherical aberration used together with diffusion discs ("sink strainers") called sieve aperture (Siebblende in German). The lens is one of the classic professional soft-focus "portrait lenses".In a joint effort with the pioneering photographer Heinrich Kühn, who, as a pictorialist, was artistically seeking for "romantic softness without sugariness, blurring without a woolly effect" in images and had been experimenting with binocular lenses and soft filters and rasters in the 1920s already, the lens was technically designed by Franz Staeble, founder of the optical company Staeble-Werk in Munich, Germany. The resulting lens was marketed as Anachromat Kühn. Later in 1928, the lens became the Tiefenbildner-Imagon, which was introduced by Rodenstock in 1930/1931 and produced up into the 1990s. The unusual term Tiefenbildner is a German composition, which can be best translated as "depth-of-field creator, modulator or painter" in an artistic sense; this designation was later dropped.Imagons do not typically have shutter mechanisms and are instead mounted on shutters (i.e., Copal large format shutters). There are also variants which can be mounted on focusing helicoids or bellows to be used with medium and 35mm cameras.All Imagons were originally sold with three different diffusion discs matched to its focal length. The Imagon equivalent to aperture size is determined by the interplay between the imagon lens central opening and the modifiable arrangement of smaller openings on the diffusion disc. These taken together produce an "H-stop" designation which approximates the corresponding f-stop of a normal lens. By rotating the outer rim of the disc, the opening of these smaller holes can be modified, and by this the amount of softness, which superimposes the sharper core of the image, is also changed. Wider H-stops, or more-open holes, mean more softness.Focus is set with the diffusion disc closed. The diffusion disc is then opened to the degree desired to record the image.".
- Rodenstock_Imagon wikiPageExternalLink imagon.html.
- Rodenstock_Imagon wikiPageExternalLink bokeh.shtml.
- Rodenstock_Imagon wikiPageID "46850712".
- Rodenstock_Imagon wikiPageLength "5822".
- Rodenstock_Imagon wikiPageOutDegree "21".
- Rodenstock_Imagon wikiPageRevisionID "672631102".
- Rodenstock_Imagon wikiPageWikiLink Achromat.
- Rodenstock_Imagon wikiPageWikiLink Achromatic_lens.
- Rodenstock_Imagon wikiPageWikiLink Bokeh.
- Rodenstock_Imagon wikiPageWikiLink Category:Photographic_lens_designs.
- Rodenstock_Imagon wikiPageWikiLink Category:Rodenstock_lenses.
- Rodenstock_Imagon wikiPageWikiLink Category:Soft-focus_lenses.
- Rodenstock_Imagon wikiPageWikiLink Copal_shutter.
- Rodenstock_Imagon wikiPageWikiLink Depth-of-field.
- Rodenstock_Imagon wikiPageWikiLink Depth_of_field.
- Rodenstock_Imagon wikiPageWikiLink Diaphragm_(optics).
- Rodenstock_Imagon wikiPageWikiLink Doublet_(lens).
- Rodenstock_Imagon wikiPageWikiLink F-number.
- Rodenstock_Imagon wikiPageWikiLink F-stop.
- Rodenstock_Imagon wikiPageWikiLink G._Rodenstock_Optical_Works_Munich.
- Rodenstock_Imagon wikiPageWikiLink H-stop.
- Rodenstock_Imagon wikiPageWikiLink Heinrich_Kühn.
- Rodenstock_Imagon wikiPageWikiLink Leica_thread-mount.
- Rodenstock_Imagon wikiPageWikiLink M39_lens_mount.
- Rodenstock_Imagon wikiPageWikiLink Munich.
- Rodenstock_Imagon wikiPageWikiLink Nidec_Copal_Corporation.
- Rodenstock_Imagon wikiPageWikiLink Pictorialism.
- Rodenstock_Imagon wikiPageWikiLink Pictorialist.
- Rodenstock_Imagon wikiPageWikiLink Rodenstock_GmbH.
- Rodenstock_Imagon wikiPageWikiLink Sieve_aperture.
- Rodenstock_Imagon wikiPageWikiLink Soft-focus.
- Rodenstock_Imagon wikiPageWikiLink Soft-focus_lens.
- Rodenstock_Imagon wikiPageWikiLink Soft_focus.
- Rodenstock_Imagon wikiPageWikiLink Spherical_aberration.
- Rodenstock_Imagon wikiPageWikiLink World_War_II.
- Rodenstock_Imagon wikiPageWikiLinkText "Rodenstock Imagon".
- Rodenstock_Imagon wikiPageWikiLinkText "Rodenstock Tiefenbildner-Imagon".
- Rodenstock_Imagon expected "Scholz".
- Rodenstock_Imagon hasPhotoCollection Rodenstock_Imagon.
- Rodenstock_Imagon nolink "y".
- Rodenstock_Imagon wikiPageUsesTemplate Template:Ill.
- Rodenstock_Imagon wikiPageUsesTemplate Template:Sic.
- Rodenstock_Imagon subject Category:Photographic_lens_designs.
- Rodenstock_Imagon subject Category:Rodenstock_lenses.
- Rodenstock_Imagon subject Category:Soft-focus_lenses.
- Rodenstock_Imagon hypernym Design.
- Rodenstock_Imagon comment "The Rodenstock Imagon is an achromat doublet photographic lens design uncorrected for spherical aberration used together with diffusion discs ("sink strainers") called sieve aperture (Siebblende in German).".
- Rodenstock_Imagon label "Rodenstock Imagon".
- Rodenstock_Imagon sameAs Rodenstock_Imagon.
- Rodenstock_Imagon sameAs Q2161023.
- Rodenstock_Imagon sameAs Q2161023.
- Rodenstock_Imagon wasDerivedFrom Rodenstock_Imagon?oldid=672631102.
- Rodenstock_Imagon isPrimaryTopicOf Rodenstock_Imagon.