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Going to restore an antique Zeiss

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34 replies to this topic

#26 Van Do9:3

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Posted 20 March 2020 - 04:20 PM

Johann,

 

Fantastic restoration of a beautiful antique. Have you tried Kroil to unfreeze the lens cell? Chuck only mentions a few times in a dozen of his posts. It’s my go to cure all. 
 

Can’t wait to see more restore. 
 

My



#27 starman876

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Posted 20 March 2020 - 06:18 PM

Here is dew shield stripped of all paint.   Notice it has a welded seem.  The main tube did not have that.  

 

zeiss dew 12.JPG


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#28 starman876

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Posted 21 March 2020 - 10:22 AM

Talking with an expert on Zeiss scopes we figured this scope is from around 1910.   


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#29 Compressorguy

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Posted 21 March 2020 - 12:27 PM

Greatly anticipating each of your restoration post. Been quite a while since I’ve restored a scope to this level, so living vicariously through you. Such a worthy candidate too!



#30 starman876

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Posted 21 March 2020 - 12:49 PM

Greatly anticipating each of your restoration post. Been quite a while since I’ve restored a scope to this level, so living vicariously through you. Such a worthy candidate too!

The trick is going to be matching the textured white paint.    I have some linseed oil paint which is what they used in those days from what I have researched.  


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#31 starman876

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Posted 22 March 2020 - 09:39 AM

Here is a Brass dew shield and a steel dew shield. 

 

dew shields zeiss.JPG

 

 


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#32 GreyDay

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Posted 24 March 2020 - 07:09 AM

  The front cell that holds the lens cell will not come off.  I tried everything.  PB blaster, heat, carb spray, acetone and all the torque strap wrenches could supply.   I think the metal OTA and the brass cell have cold welded over the more than 100 years they have been on contacted with each other. 

I had a brass mixture jet seized in a set of aluminum motorcycle carbs, got it out using a ultrasonic bath with carb cleaner that heated and vibrated all the gunk from the thread. might be worth a try.



#33 starman876

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Posted 24 March 2020 - 07:14 AM

I had a brass mixture jet seized in a set of aluminum motorcycle carbs, got it out using a ultrasonic bath with carb cleaner that heated and vibrated all the gunk from the thread. might be worth a try.

Interesting.   Will have to check out finding an ultrasonic bath.



#34 Defenderslideguitar

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Posted 24 March 2020 - 07:25 AM

Really coming along...................keep up the good work.

 Certainly a good time for restoration and repair.



#35 astroroman

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Posted 27 March 2020 - 11:28 AM

Hi, I have a similar telescope (Zeiss of 1910) and I decided to leave it as it is, but is better then yours.

May you post a picture of the serial number on focuser and of the serial on the lens? It's a E 60/840, isnt'it?

Restored in any case could be very nice.

Best

Giuliano




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