The Ducati Sogno 19mm Argon Lens is the rough equivalent of a 24mm lens on a 'normal' full sized camera. For those of us who enjoy shooting extra wide!
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DUCATI - OD 6409.1 - DUGON 19mm / 6.3
The Dugon lens was referred to in the Ducati documentation as a "Wide-angle lens suitable for architectural, landscape and interior designations" and appeared for the first time in the 1949 documentation.
This lens was of the retractable type and had a field of view angle of 77 °, a minimum focusing distance of 1 meter, and an adjustable diaphragm between 4 possible aperture openings (6.3-8-11-16). The company documentation did not give any detailed information about the optical scheme.
For focusing, it was directly coupled with the Dream rangefinder, but the field of view did not correspond to that visible in the cameras viewfinder, so therefor a separate view finder was necessary (OR 2403.1).
There was no lens hood produced for this lens because of the recessed design and wide field angle, but there were several filters made for it.
Observing the serial numbers of a number of these lenses from those that we have been able to find, we are able to estimate that between 90 to 130 may have been produced. Refer to our table below for the data used for these estimates.
Availability: This lens is rarely seen for sale, perhaps once every year or two.
Original text and tables above by D. Consonni, with permission. Translated by MasterpieceCamera. © 2018
The following table is a list of known Dugon Lenses with the Serial Number and possible number produced in our estimate. Please help us in our efforts to expand this list by sending us any lens serial number/s not in our list so that it will be as accurate as possible, thank you!