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Recent binoculars repair

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17 replies to this topic

#1 ivansky

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Posted 07 November 2021 - 08:33 AM

Here's a pair of WWII binoculars I just repaired for a repeat customer.  These were made for the Lend Lease Program and went to Great Britain as indicated by the upward pointing arrow and the location of the reticle in the right barrel.

The left prisms were broken and all  lenses were foggy. 

I disassembled the binoculars for a thorough cleanup and lubrication.

True collimation was achieved for all IPD range after reassembled all parts.

Now the binoculars function like new like they were in WW2.

 

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Edited by ivansky, 07 November 2021 - 08:38 AM.

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#2 ivansky

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Posted 07 November 2021 - 08:34 AM

More pictures

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#3 ivansky

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Posted 07 November 2021 - 08:35 AM

Before and after collimation.

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#4 kenny moses

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Posted 11 November 2021 - 01:02 PM

Nice job. Was it difficult to find a replacement for the broken prism? (since I know absolutely nothing about replacing and aligning prisms.)



#5 ivansky

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Posted 11 November 2021 - 08:31 PM

Not very difficult to find prisms for some of the WWII binos. Some places still sell old stocks.


Edited by ivansky, 12 November 2021 - 06:28 AM.

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#6 TheUser

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Posted 12 November 2021 - 07:09 AM

how did you performed collimation procedure?



#7 ivansky

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Posted 13 November 2021 - 09:54 PM

For smaller binoculars I use Fuji UBMM. For larger ones I use a special collimator that can perform collimation up to 150mm aperture or more.
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#8 ivansky

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Posted 23 November 2021 - 08:41 PM

Recent Tasco water proof binoculars service and collimation.

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#9 ivansky

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Posted 23 November 2021 - 08:42 PM

Before collimation.

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#10 ivansky

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Posted 23 November 2021 - 08:43 PM

After collimation.

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#11 Mark9473

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Posted 24 November 2021 - 05:10 PM

Do you operate a repair service, and where is it?

#12 ivansky

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Posted 25 November 2021 - 09:56 AM

Do you operate a repair service, and where is it?

Yes I am operate a repair service for binoculars in WA.

#13 Mark9473

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Posted 25 November 2021 - 09:59 AM

Sorry, I don't know what WA is.

#14 Pinewood

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Posted 25 November 2021 - 10:10 AM

Sorry, I don't know what WA is.

Hello Mark,

 

I think WA is an abbreviation for Washington State, USA.  

 

Stay safe,

Arthur


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#15 ECP M42

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Posted 25 November 2021 - 02:24 PM

For smaller binoculars I use Fuji UBMM. For larger ones I use a special collimator that can perform collimation up to 150mm aperture or more.

Hi Ivan, I guess you are a professional and know even the most modern tools. In a Swarovski video I saw a technician looking at an LCD screen from 30-40cm away with binoculars.
Do you know if there is a collimator of that type, or do you have any idea what the technician was doing?

 

Henry


Edited by ECP M42, 25 November 2021 - 02:25 PM.


#16 ivansky

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Posted 25 November 2021 - 08:59 PM

Hi Ivan, I guess you are a professional and know even the most modern tools. In a Swarovski video I saw a technician looking at an LCD screen from 30-40cm away with binoculars.
Do you know if there is a collimator of that type, or do you have any idea what the technician was doing?

Henry

Henry,
Can you post a link of that video so that I can take a look what they are using.
Thanks.

#17 ECP M42

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Posted 26 November 2021 - 09:48 AM

Henry,
Can you post a link of that video so that I can take a look what they are using.
Thanks.

I tried to find it, but as usual when you look for it you can't find it. smirk.gif 
It was still a PC monitor ... maybe a 27-32" Apple



#18 J. Barnes

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Posted Today, 07:00 PM

Got these back from Ivan today. They look fantastic. Now I need the clouds to clear. 




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