Uno Anastigmat
 
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| Uno Anastigmat, with and w/o front group images by Born in York (Image rights) |
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| alternate Uno Bi-Focal front lens elements set |
Aldis' f/7.7 Uno Anastigmat was available as convertible lens for still cameras. The front group of lens elements could be removed, leaving a single element as lens and the diaphragm on the camera. An optional alternate set of front lens elements named Uno Bi-Focal could be screwed upon that single element lens, giving an anastigmat of longer focal length than that the original Uno Anastigmat.
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| 1914 catalog pages image by Born in York (Image rights) |
