Voigtlander Ultron 2/50mm Leica M39 DIY

[arri]

It is a similar convertion like the SK Xenar 2.8/50mm I post just before.
The Ultron is my favorite standard lens.
It were the best lens of its time but only available for Voigtlander cameras.
It is a successor of the SK Kleinbild Xenon of the 1930. A.W. Tronnier computed it for Schneider but because of the uncoated glass it were very sensitive for reflections.

In the late 1940 Mr. Tronnier worked for Voigtländer and redesigned the KB Xenon and named it Ultron.

An nonsymmetrical design, six elements in five groups.
Incredible sharp lens with an excellent color transmission, nearly apochromatic corrected.

I made this picture of the Leica with the lens with SK Apo Symmar 5.6/210mm in 4x5" format

 

[arri]

And a sample I made with this combination.
I used a Kodak Tmax 100 and Wehner Developer

 

[arri]

And a second:

 

[Paul T.]

That looks very impressive. Tell us more about the conversion.

 

[retinax]

Yes please, more information! Although that will drive prices for these lenses up...
Your sample pictures look a bit mushy, excessive jpeg compression, or maybe noise reduction?

 

[gavinlg]

Would you per chance have some photos taken at f2 with the lens? You have me curious.

 

[arri]

Would you per chance have some photos taken at f2 with the lens? You have me curious.

Here you are, taken with f/2 but here I used a Kentmere 400, developed in Amaloco AM74

 

[Sarcophilus Harrisii]

What was the lens mount of the Ultron involved, originally?

 

[nhchen]

Hi Arri, Did you get that ultron from maybe a Vitessa and put it into an akarette xenon lens body?
Nathan

 

[arri]

Hi Arri, Did you get that ultron from maybe a Vitessa and put it into an akarette xenon lens body?
Nathan

You are right, this one were out of a damaged Vitessa camera and I mount it in a Aka barrel but this makes a lot of work because of the separate socket and the tube for the rangefinder coupling and the complete adjusting.
A little bit easier is to use a socket which already has an M39 mount with a rangefinder cam, like a Russian Industar barrel or a similar lens.
Twi years ago I used a focus socket of a Leitz Summitar to give my Voigtlander Prominent lenses a new home. It got the Prominent bayonet to change between the three standard lenses of the system, the Color Skopar 3.5/50mm, the Unlron 2/50mm and the Nokton 1.5/50mm.
I must have a look, I guess that I still have pictures of it.

 

[arri]

It works with a digital camera as well, taken with a full format camera.

 

[nhchen]

One day I’ll have to learn some machining so I can have a go at this.
Nathan