It seems to me that many people like monster lenses. If periscope is acceptable, I can help. A 1000mm / 100 degree version was built. A 2000mm / 70 degree version is under construction. ...
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It seems to me that many people like monster lenses. If periscope is acceptable, I can help. A 1000mm / 100 degree version was built. A 2000mm / 70 degree version is under construction. ...
The collection of Burleigh Brooks was auctioned in July 2009. Hundreds of Zeiss Jena prototypes and earliest lenses were shown. I got #40, #82 and some prototypes.
#40 and #82 are in my hand
#20 and many others were shown in eBay many years ago.
From Thiele's book, ten F4/140mm Flektogon were made from 1971. I have no idea what it was intended to do. The image circle is 180mm and the angle of view is 65 degree.
It can cover 4x5 easily. The distance from rear element to ground glass is about 170mm.
Zeiss Jena F4 / 140mm Flektogon should be suitable.
http://blog.xuite.net/fdchen/lenses/30068373