The lens in the front center of this picture, with the extremely rounded glass surface, was eventually identified as the #2 variant of the 1889 CZJ prototype Anastigmat-Weitwinkel, and the very flat example to the side of it is the #4 variant in much shorter focal length and an alternative barrel design. However, patience and tenacity were rewarded. The following year, the initial catalog versions of this lens were decidedly lighter and more compact.Ĭomparing and matching the many unique experimental optics in the collection that lack any proper identifying mark (other than occasional lead or grease pencil data, small optical diagrams, and engineering shorthand) with actual references within the Zeiss documentation presented a daunting and time-consuming task. Paul Rudolph's landmark anastigmat design, in 240mm and 190mm focal lengths, with wheel stops. Two original Decmeber 1890 prototype production Weitwinkel (wide-angle) variants, fully finished in polished brass barrels, of Dr. Exceptional Taylor, Taylor and Hobson Cooke Anastigmat lens variant, their famous triplet design, this example for 3 1/4 x 4 1/4 inch format coverage, sitting on a copy of the original Carl Zeiss data and test results card. This represents just a portion of the more than 2300 pages of documentation I needed to read through while researching the beginnings of Carl Zeiss Jena photographic lens production! An impressive Carl Zeiss Versuch or experimental prototype lens, dating from 1925, representing an 8.5cm design with fast f/1.75 maximum aperture, sitting on a copy of the original Zeiss data and test results card. My working copy of the massive 990-page Zeiss Index of Photographic Lenses compiled by Willy Merte in the late 1940's under the supervision of Ed Kaprelian while working with the US Army Signal Corps. 5cm f/2.7 lens in modified Leica screw mount.
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Tamilnadu tet model question paper with answers free download. On the left is a legendary Carl Zeiss Sphaerogon 1.9cm f/9 ultra wide-angle lens, and on the right an experimental variant of the Hugo Meyer Makro-Plasmat 3. Here are two influential wide-angle designs from the Zeiss collection.
Several Versuch and other prototype lenses from the Goerz lens collection, which Carl Zeiss eventually absorbed, including Dagor and Celor variants, and a very unusual Quarz Anastigmat for ultra-violet light. Here is a number of Carl Zeiss designated Versuch experimental lenses from 1918 to 1925, possibly the first time in over 60 years that so many original 'V-lenses' have been assembled in one place at the same time. Ernst Abbe for Zeiss, predating Rudolph's anastigmat (Protar) patent by several months. In this grouping, second from the left in the front row is one of the few surviving examples of the Triplet Achromat (aka Triplet Apochromat), the very first optical design patented in 1890 by Dr.
HIGHLIGHTS FROM THE CARL ZEISS JENA LENS COLLECTION A BRIEF SURVEY OF SELECTED TREASURES.FROM LOST PORTIONS OF THE COLLECTION REDISCOVERED AND ASSEMBLED OVER TIME BY DAVID SILVER FOR RESEARCH INTO THE HISTORY AND ORIGINS OF THE LEGENDARY COMPANY'S EARLIEST PHOTOGRAPHIC LENS PRODUCTION A first glance, a random selection of interesting treasures from the Carl Zeiss Jena lens collection, showing historically significant optical designs from many of their competitors, as well as some of their own pieces. Highlights from the famous CARL ZEISS JENA lens collection Copyright © 2012, 2015 David Silver.
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I have had for a long time a Hugo Meyer & Co Trioplan 10.25' (about 260mm) f3.3 lens, serial number 4171#, and was wondering if there is any information out there about it. CONTAX lens, Hugo Meyer telephoto 10cm, 2.8, coated, coupled, case.
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