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Confirm if this lens exists: Carl Zeiss Jena Tessar 2.8/50
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PostPosted: Sat Jul 24, 2021 7:02 am    Post subject: Confirm if this lens exists: Carl Zeiss Jena Tessar 2.8/50 Reply with quote
I found this lens on Taobao a few days ago and bought it for a very low price, about $30.
But when I looked for information on this lens, I couldn't find anything about it.
It's printed on the lens Carl Zeiss Jena Tessar 2.8/50.
The mount of the lens is exa.
Thanks.






PostPosted: Sat Jul 24, 2021 8:03 am    Post subject: Reply with quote
You mean this one?
http://forum.mflenses.com/jena-t-50mm-f28-tessar-export-version-t45678.html
What is wrong for you?


PostPosted: Sat Jul 24, 2021 8:49 am    Post subject: Reply with quote
Yes it certainly looks real to me. It's a later design that that is more often seen (by me at least) in the 135mm f4 Sonnar lens and is designed for the Exakta mount.
I think this style of livery had a nickname - was it Sputnik or something like that because of its rather space age look? Details elude me right now.

The 135mm f4 Sonnar

https://mwclassic.com/wp-content/uploads/2021/05/mwclassiccameras-20210513-143.jpg

Also 80mm f2.8 Biometar

https://i.ebayimg.com/images/g/k98AAOSw1eFc96Ev/s-l1600.jpg


PostPosted: Sat Jul 24, 2021 10:40 am    Post subject: Reply with quote
Thanks Like 1 small
I just want to know if I'm being lied to.
And is it worth $30?


PostPosted: Sat Jul 24, 2021 11:05 am    Post subject: Reply with quote
Whr wrote:
Thanks Like 1 small
I just want to know if I'm being lied to.
And is it worth $30?


The lens came in a variety of liveries - aluminium, chrome, and the three versions like yours were generally referred to as the zebra, the gutta-percha and the star-wars types.
Yours is one of the gutta-percha versions of which I think there were two depending on the grip of the focusing ring.
Is it worth $30?
Probably.
That seems to be about the going price for sold samples that I have seen (depending on condition of course).
It is a good lens and will give excellent images
Tom


PostPosted: Sat Jul 24, 2021 12:01 pm    Post subject: Reply with quote

This is what I got when I mounted this lens to a Fujifilm XT3.
I'm sure it's a good lens.


PostPosted: Sat Jul 24, 2021 1:26 pm    Post subject: Reply with quote
It's a very good lens if you use it into his limits .

In the 50's and 60's almost all srl cameras had three normal lenses
F/2 or near (f/1,8 - f/1,9 - f/2). It was the more complex and expensive. Used to have rare glass and 5 or 6 elements.

F/2,8 (f/3,5 too) with 4 elements, like yours. Very good IQ, medium contrast, sharp from f/4,8 and with almost excellent rendering at f/8 to f/11 in film.

F2,8- 3,5 with 3 elements. The cheap line.


PostPosted: Sat Jul 24, 2021 1:49 pm    Post subject: Reply with quote
I have three so it must exist :p
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