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This page was last edited on 20 February , at It is tentative in places. The earliest Zeiss Anastigmat noted so far is No1,51x suggesting a possible No start at Jena for camera lenses: This must have been one factor leading to a big expansion of demand and production.
It is an anonymous item. Thus they are distinguished by quoting as M 3.
Now a plant of a successful company does not vary that much in production rate unless there is diversion to other products, as is likely during a war binoculars? Or there is a cessation of materials or labour, which can also happen in war.
Carl Zeiss Age Lens by the Serial Number | xiqolubemaxe.tk Photography Forums
These will have affected things in say to but it does seem likely that the numbers used in are a "funny" and one feels they include some for as well. Also note that there are gaps between the "Years lens" numbers, as for No, in end and No, for begin, where 30, numbers are "missing. It seems likely that there was a carry over of numbers in some years from one year to the next, due to numbers being booked for a contract or sale in advance- or some such mechanism.
There is a instinctive feeling that in , the plant was actually normally making about 25,, lenses. Now going backwards, it is likely that production had built up slowly as labour was trained and plant designed and built, and that a typical serial number for might be No40, as suggested above , rather than No75, which would be the mid-point from No to say No, in After WW1, there is a rapid recovery of production, but again there are big fluctuations in the apparent yearly numbers produced.
There are also still gaps between the blocks of numbers attributed to years. It does seem that production was set to rise steadily in the 's, even though there was a recession, and especially after the formation of Zeiss Ikon with the related rationalizations and a "captive" market. Thus by , there do seem to be some , or more per year, and then in the 's, up to , or , numbers per year used. All this does also raise one point: Thus it is normal to find cases where lenses were never made to match numbers reserved for them.
One is left with a feeling that early Zeiss lenses are rare and should be very desired items. An authentic list Carl Zeiss supplied to a friend in , with the same general result, was as follows: The Opton mark lasted for most purposes until about at No1,, but was used for many more years for items sold in the Comecon countries- which will cause confusion if it is not realized.
Initially these were calibrated with the focal length in centimeters. If you go to the Carl Zeiss web page and send them an email with the serial number of the lens, they will look it up for you and tell you exactly the month and year the lens was manufactured. Thanks for the answer, Dan.
They was very useful. What are the Serial Number after ? Carlos Alberte, I'm sorry but I don't know of a published source for Zeiss lenses' chronology after What you want may have been published by the Zeiss Historica Society. HE has a list he's compiled.