Grandmother of the Bessa III Wide, made ~1955 in Braunschweig

Sonnar2

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see article http://www.taunusreiter.de/cameras/Ultragon_eng.html
 
Amazing! Really interesting prototype. Thanks for posting! As the previous poster, I am curious on where did you find this treasure...

Alex
 
Magnificent!
Why, oh why, did this not go into production!?
(Answer: "There's insufficient perceived market demand for it, Sir | you're fired!" ).

But it might have found a niche market amongst professional users; the Brooks Veriwide and Envoy Wide Angle spring to mind. I would really have liked to have one of these, had they gone into production.
As it is, I have had to make a cruder functional near-equivalent from a bakelite camera and f/6.8 65mm Angulon.


ANGULON BAKELITE CAMERA SPECIAL - View 1 by johnnyh4, on Flickr

Additional: After reading the lens information given in the OP's link ...

It's interesting to compare the 64mm f/6.8 Taylor-Hobson Envoy with the Ultragon. According to the Lens Vade Mecum the Envoy is 4-glass gauss design. It is tiny, like the Ultragon, but instead of being around a Size "000" (?) shutter, the Envoy is a module with its own aperture iris, and sits forward of the shutter blades in a Size 0 shutter (it is found with Epsilon, Compur(/Rapid), Prontor, Agifold... shutters). The rear of the Size 0 shutter is machined down as far as possible to minimise vignetting. The Envoy has much less aberration at the edges than the (older) Angulon 65mm f/6.8 design (I have both).
 
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Very nice. I just recently purchased a Horseman Convertible as my new wide angle medium format option. A 62mm lens on 6x7 is wide-ish, and it's pretty small and works nicely.

Despite their rarity, they don't seem to have caught the eye of collectors, so pretty reasonable price.
 
I have to add some technical data:
weight 950g (as opposed to 1100g of the Bessa III W)
But of course: no meter, no AE.
filter size 30.5mm
shutter speeds B, 1-1/500s, fully synchronized. some rolls Kodak Ektar 100 waiting, speeds will be tested soon.
 
I see, from the article linked in the first posting, that A W Tronnier also designed the Ultron lens. I had one in a Vitessa, it was excellent, so I think that the Ultragon has an excellent pedigree :) .
 
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