Carl Zeiss Jena 2.8/50 (alu finish)

hasan · Joined: 12 Mar 2007 Posts: 313

Hello guys,
I recently bought this lens along with a Pentacon F
for almost next to nothing.

This is the lens: http://www.praktica-collector.de/Tessar_2.8_50.htm

It had stuck focusing ring,
which wouldn't move at all.

So, after screwing out the outer big ring at rear,
I was able to take off complete lens group all in one.
(no fungus, no oil on blades, etc.)

Then I decided to disassemble it
to clean off the threads from the old grease
(1. focusing ring, 2. inner tubus from rear tubus)

Now, here is, where I stuck now:
Looks like, I can't reassemble them.
I didn't mark anything on these 3 parts.
I was glad, I could unscrew them, anyway.

Well, every time, I put them together,
the inner part seems to stuck,
before the focusing ring screws in completely. Crying or Very sad

There is always a gap of 2-4mm.

Is there any link/hint, which shows the order?

Thanks in advance
Hasan

PS: Haha, I just noticed, that all my writing looks like an ode Laughing

LucisPictor · Expire: 2013-12-03

Farside · Expire: 2013-12-27

Have a look on this site and in the forums too. http://www.kyphoto.com/classics/articles.html

Somebody on that site will have done it already.

hasan · Joined: 12 Mar 2007 Posts: 313

Sorry for posting this only now.
Thanks for the answers, Carsten and Farside.

The links you have posted, didn't help much.
I needed kind of a scheme, where I could see,
at which points I have to put things together.

So I tried, and tried.
After million attempts, I managed to re-assemble it. Very Happy

Here are the first attempts with it.

Mir� is my veiled chameleon, sunbathing.

Orio · Expire: 2012-12-04

Wow!!!
Fantastic images!

I just received the same model and it's just as sharp Very Happy

hasan · Joined: 12 Mar 2007 Posts: 313

Thanks Orio. Yes, it payed off to fiddle around with it.
Got it + a Pentacon F for about 8� Very Happy

I forgot to mention (if my memory serves me right), that these were shot at f4.