ZK lens

Topic

Topic author: AlexanderK

Posted on: 20100109175052

Hello,
some weeks ago I have complemented my collection with a very interesting and, I think, rare ZK lens with rather low serial number (000532).

http://www.ussrphoto.com/UserContent/912010_p2.jpg

http://www.ussrphoto.com/UserContent/912010_p1.jpg

http://www.ussrphoto.com/UserContent/912010_p1.jpg

Whether somebody knows, how long this ZK lens has been produced and what is the largest known number? On the I-page http://www.zenitcamera.com/archive/lenses/jupiter-8.html I have found this lens with #1262.

Regards, Alexander

Reply author: RCCCUK

Replied on: 20100110045000

Hi Alexander,

The rigid 39mm screw mount version of the ZK seems to be rarer than the Kiev/Contax mount version. I have two versions of this lens with Kiev/Contax mount. One is a ZK of 1948 #000378 and the other is a ZK Zorki of 1949 #4903170. I also have a collapsible ZK Zorki 39mm screw mount lens of 1950 # 5001949. I do not know if the serial numbers are specific to the mount type, or whether all f/2 5cm lenses had one series of numbers. Perhaps someone with more knowledge of these lenses can let us know.

David

(http://www.rcccuk.com)

Reply author: stephanvdz

Replied on: 20100116155146

I've got almost the same lens with the same mount but in Carl Zeis Jena 2687429 T... thought at first that was an industar 26 mount with a sonnar barrel and glass.

I would be very interested to see the back of the mount... and if possible the zeiss serial number that is hidden in this lens...

Stephan

Reply author: stephanvdz

Replied on: 20100116174619

to see that... just take the back part of the lens out and look for a 6digit number...

Stephan

Reply author: stephanvdz

Replied on: 20100117143141

the sonnar that looks like your zk...

http://www.ussrphoto.com/UserContent/1712010_sonnarZKmount.jpg

http://www.ussrphoto.com/UserContent/1712010_sonnarZKmount.jpg

Stephan

Reply author: stephanvdz

Replied on: 20100117143401

http://www.ussrphoto.com/UserContent/1712010_sonnarZKmount1.jpg

http://www.ussrphoto.com/UserContent/1712010_sonnarZKmount1.jpg

Stephan

Reply author: stephanvdz

Replied on: 20100117143652

http://www.ussrphoto.com/UserContent/1712010_sonnarZKmount2.jpg

http://www.ussrphoto.com/UserContent/1712010_sonnarZKmount4.jpg

http://www.ussrphoto.com/UserContent/1712010_sonnarZKmount4.jpg

Stephan

Reply author: Jacques M.

Replied on: 20100117152214

Hi Stephan!
Fine to see you back!
The smell of Zeiss's lenses...
In fact, I agree: it would be interesting to know more about the back of Alexander's ZK.

Amitiés. Jacques.

Reply author: stephanvdz

Replied on: 20100117152957

and for your eyes only... a ZK that is not zeiss...

http://www.ussrphoto.com/UserContent/1712010_ZK.jpg

http://www.ussrphoto.com/UserContent/1712010_ZK1.jpg

http://www.ussrphoto.com/UserContent/1712010_zk2.jpg

http://www.ussrphoto.com/UserContent/1712010_zk2.jpg

Stephan

Reply author: stephanvdz

Replied on: 20100117153615

and a zeiss that should have been a ZK... see the serial number

http://www.ussrphoto.com/UserContent/1712010_sonnarwartimef2.jpg

http://www.ussrphoto.com/UserContent/1712010_sonnarwartimef2bis.jpg

http://www.ussrphoto.com/UserContent/1712010_sonnarwartimef2ter.jpg

http://www.ussrphoto.com/UserContent/1712010_sonnarwartimef2ter.jpg

Stephan

Reply author: AlexanderK

Replied on: 20100119124606

Hello Stephan,
Hello Jacques,

I have took out the back ring, but I have not found any number [:(]. What do I do wrong?

Regards, Alexander

Reply author: stephanvdz

Replied on: 20100119140328

ok... you have to take out the back part of the lens... with a spanner wrench (you have two black rings inside the rangefinder cam)... normally it comes out easily...

if you look at the picture of the zeiss lens just above... it's the black rimmed part with two grips for the spanner wrench... nothing hard... on my lenses it comes out easily with the rim only...

Stephan

Stephan

Reply author: stephanvdz

Replied on: 20100119140855

a zeiss number looks like this (here on a 1,5 contax mount sonnar)

http://www.ussrphoto.com/UserContent/1912010_wartimesonnar.jpg

http://www.ussrphoto.com/UserContent/1912010_wartimesonnar.jpg

now you see which black part you have to unscrew...

Stephan

Reply author: Kievuser

Replied on: 20100120004432

Hi,

I think ltm ZK and early Jupiter-8's back should have no screws like the one on the right, am I right? Or there are more versions?

Cheers,

Zhang

http://www.ussrphoto.com/UserContent/2012010_IMG_8941.JPG

Reply author: stephanvdz

Replied on: 20100120121655

what lens is on the left ? it's the same mount as mine...

Stephan

Reply author: Kievuser

Replied on: 20100120193003

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by stephanvdz
 what lens is on the left ? it's the same mount as mine...

Stephan
<hr height="1" noshade id="quote"></blockquote id="quote">

On the left is a 1955 Jupiter-8. Pleas check #bay item:320467005850 a ZK lens has the same mount as the one on the right.

Zhang

Reply author: AlexanderK

Replied on: 20100121145925

My lens has the mount as on the right lens. It is not easy to disassemble this lens, so I would try it first on my old Jupiter-8 with the same mount. [:)]

Regards, Alexander

Reply author: stephanvdz

Replied on: 20100121154715

you need a spanner wrench to unscrew the back block of the lens... easy... but precise... it's never hardly screwed...

S.

Stephan

Reply author: RCCCUK

Replied on: 20100322085003

While have a bit of a sort out of my collection, I have just come across this lens.

http://www.ussrphoto.com/UserContent/2232010_ZK f2-5a.jpg

http://www.ussrphoto.com/UserContent/2232010_ZK f2-5b.jpg

http://www.ussrphoto.com/UserContent/2232010_ZK f2-5b.jpg

Although marked ZK, 1951, No. 011615, it appears to be a Jupiter-8. My guess is that the markings have been added later. What do you think?

David

(http://www.rcccuk.com)

Reply author: Jacques M.

Replied on: 20100324093027

Hi David,
Certainly you are right, or your lens is an exception.
After my datas:
- there is no 1951 2/50 ZK lens,
- all the 2/50 ZK lenses have "ears" at the diaphragm ring,
- last known ZK 2/50: serial number 5005206 (Zhang datas). First known Jupiter 8: serial # 5005386 (my collection, on a 1950 Kiev II), with ears too.

Perhaps it would be useful to put that in the wiki, as the 1950 year is a transition for ZK and Jupiter lenses.

Amitiés. Jacques.

Reply author: AidasCams

Replied on: 20100325095824

Hi Jacques,

let me show you one picture below ... [:)][:)][:)]

http://www.ussrphoto.com/UserContent/2532010_zk-zorki_1951.jpg

http://www.ussrphoto.com/UserContent/2532010_zk-zorki_1951.jpg

Best Regards,
Aidas

Reply author: Jacques M.

Replied on: 20100325102824

Hi Aidas,

I think there are some interesting differences between the two 1951 2/50 ZK lenses: yours and David's...
Anyway, a genuine 1951 ZK would be a novelty (for me!). But no doubt KMZ could have found some old parts in their boards! It would not be the first time...

I have just checked my datas: all these lenses (the 1950 and 1951 ones) have 7 ciphers, not 6 ?...

Amitiés. Jacques.

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