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The Weitwinkel Aristostigmat's coverage is 105 degrees stopped down, and it is the only lens other than the 82mm Taylor Hobson Cooke Wide Angle Anastigmat that will work for my application. It must...

I recently purchased a 150mm F4.5 Zeiss-Jena Tessar lens which must have been coated at the Aresenal Factory in Ukraine sometime in the Mid-2000s before it closed (it was sent to me from Kiev). It...

Meyer's literature from the 1930s claims that the F9 version of the 79mm Weitwinkel Aristostigmat lens will cover 100 degrees stopped down to F22. The F6.3 is supposed to cover a full 105 degrees. ...

Is 80mm a possible focal length on either the 4x5 or 2x3 Kalart Rangefinder, with some simple adjustment or even a little machining? Just curious.

Wow, 6x14 seems to be the way to go with this lens! He also had data on the film to flange distance for this lens, which is about 72mm.

Thanks, Dan. I'm going to shoot the full 6x17 frame to get a 6x15 image. Cut a hair off the top and bottom, and it's the same aspect ratio as 6x17.

I recently acquired this lens, and have read conflicting information. I can't find any information on its image circle, other than that an old Goerz catalog says it has a 90 degree field of view at...