20 replies to this topic

[Jadyr]

Hello friends,

Does any body know How to open objective of Zeiss 10x40b Dialyt binoculars ?

I am trying to twist this part by cant. 

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Edited by Jadyr, 08 July 2019 - 11:27 AM.

[Corcaroli78]

Hi Jadyr:

 

Nice iconic classic binocular!  I would not recommend to open the binocular by yourself, you could damage the rubber armor. If you plan to clean it, especially the prisms, its better to send them for professional maintenance (not necessarily to Zeiss) 

 

I sent my Notarem 10x40B (the East German "cousin" of the Dialyt) for full maintenance (cleaning, adjustment, replacement of spare parts) and I paid 120 Eur. Considering the market value of the classic Dialyts (especially if they are the T*P version), makes sense to invest on them.

 

Carlos

[Jadyr]

Hi Jadyr:

 

Nice iconic classic binocular!  I would not recommend to open the binocular by yourself, you could damage the rubber armor. If you plan to clean it, especially the prisms, its better to send them for professional maintenance (not necessarily to Zeiss) 

 

I sent my Notarem 10x40B (the East German "cousin" of the Dialyt) for full maintenance (cleaning, adjustment, replacement of spare parts) and I paid 120 Eur. Considering the market value of the classic Dialyts (especially if they are the T*P version), makes sense to invest on them.

 

Carlos

Yes Carlos, the problem is I am in Brazil, and here they charge much more to clean this. I need to know how can i open this, only to decide if i try by myself or pay many $$$.

[Corcaroli78]

Yes Carlos, the problem is I am in Brazil, and here they charge much more to clean this. I need to know how can i open this, only to decide if i try by myself or pay many $$$.

Hi Jadyr,

 

If you are in Brazil, now i can understand your concern about the cost.

 

Looking at the pictures,  it seems that you need to peel down the rubber of the objective tube (there is a rubber wing on the side of the tubes). Once down, you can unscrew the tube and clean the objective. If you need to clean the prism block, do not extract it or disassemble it, tolerances are critical and you will have a useless binocular. 

 

In the very very worst case, if you damage the rubber, the Dialyt leatherete look is not bad at all :-(

 

Here are some pictures about how it could look from inside. It is from a Notarem but the Dialyt is somehow similar. The site is in german but you can translate it.

 

https://forum.astron...24/#post-706967

 

If you can post pictures of the objective we could have an idea of how dirty it is from inside.

 

Carlos

[Jadyr]

Carlos, not need tools? No need unscrew some bolts ?

And if i need to open ocular, can i unscrew the ocular tubes? 

 

Thanks

[Jadyr]

Hi Jadyr,

 

If you are in Brazil, now i can understand your concern about the cost.

 

Looking at the pictures,  it seems that you need to peel down the rubber of the objective tube (there is a rubber wing on the side of the tubes). Once down, you can unscrew the tube and clean the objective. If you need to clean the prism block, do not extract it or disassemble it, tolerances are critical and you will have a useless binocular. 

 

In the very very worst case, if you damage the rubber, the Dialyt leatherete look is not bad at all :-(

 

Here are some pictures about how it could look from inside. It is from a Notarem but the Dialyt is somehow similar. The site is in german but you can translate it.

 

https://forum.astron...24/#post-706967

 

If you can post pictures of the objective we could have an idea of how dirty it is from inside.

 

Carlos

Can i unscrew only down the rubber to this position? I tried unscrew the tube but is too tight.

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Edited by Jadyr, 08 July 2019 - 03:19 PM.

[Corcaroli78]

Can i unscrew only down the rubber to this position? I tried unscrew the tube but is too tight.

If it is tight then you need tools. I am sorry i can not advise on this.

 

If you unscrew the oculars, there is a VERY high probability to lose the alignment (colimation) and the binocular will be useless. Roof binoculars like this have internal focusing system. 

 

At this point you need to make a cost -benefit decision:  the Zeiss Dialyt is a good vintage binocular, IMO, if there is a sentimental value, the investment in the repair may be worth because it will provide you nice views, but if you want to have just "a Zeiss binocular", better to sell it "as is" to fund a "newer" Zeiss model. A used second hand Dialyt to be repaired can be sold between 200 to 400 Eur depending on several factors (damage, coatings, phase coatings). With than amount plus some extra money you could get a second hand Zeiss Terra 10x42 (but china made) 

 

Unfortunately, Roof binoculars can not be serviced as the porros which are (relatively) much easier to clean and adjust.

 

You can contact some optical workshops in US, Germany or UK. Usually they need to inspect the binocular before to assess the repair and the cost, but if you request a price for a complete disassembly, cleaning and repair, you will know the price limit that you could pay plus spare parts if needed. In my case, i sent my Notarem for inspection and they suggested partial repair or full service. the full service was just 30 Eur more than the partial inspection, so I asked the full service. If you want, I can recommend you workshops in Germany and you can contact them.

 

Hope this will help you,

 

Carlos

[Jadyr]

If it is tight then you need tools. I am sorry i can not advise on this.

 

If you unscrew the oculars, there is a VERY high probability to lose the alignment (colimation) and the binocular will be useless. Roof binoculars like this have internal focusing system. 

 

At this point you need to make a cost -benefit decision:  the Zeiss Dialyt is a good vintage binocular, IMO, if there is a sentimental value, the investment in the repair may be worth because it will provide you nice views, but if you want to have just "a Zeiss binocular", better to sell it "as is" to fund a "newer" Zeiss model. A used second hand Dialyt to be repaired can be sold between 200 to 400 Eur depending on several factors (damage, coatings, phase coatings). With than amount plus some extra money you could get a second hand Zeiss Terra 10x42 (but china made) 

 

Unfortunately, Roof binoculars can not be serviced as the porros which are (relatively) much easier to clean and adjust.

 

You can contact some optical workshops in US, Germany or UK. Usually they need to inspect the binocular before to assess the repair and the cost, but if you request a price for a complete disassembly, cleaning and repair, you will know the price limit that you could pay plus spare parts if needed. In my case, i sent my Notarem for inspection and they suggested partial repair or full service. the full service was just 30 Eur more than the partial inspection, so I asked the full service. If you want, I can recommend you workshops in Germany and you can contact them.

 

Hope this will help you,

 

Carlos

Ok Carlos. Thank you . I wont try to open it

[Ant1]

Hi

 

The objective barrel will unscrew but you need either a strap wrench to apply more force or a heat gun to loosen the thread sealant used on those Dialyts, possibly both.

Not very difficult but you need the proper tools otherwise you'll only gain frustration.

 

Regards

Ant1

[Jadyr]

Thank you to tell me this detail

[Grimnir]

There is an extremely good and inexpensive Zeiss repair shop here in the UK but is your Zeiss covered by transferable lifetime warranty?

 

Let me know if you need details.

 

Graham

[Jadyr]

The problem would be to send it from Brazil to UK, and return it to Brazil.

If i life in UK, i would repair in this shop, but i live in Brazil... I have few options here.

[Corcaroli78]

The problem would be to send it from Brazil to UK, and return it to Brazil.

If i life in UK, i would repair in this shop, but i live in Brazil... I have few options here.

I see -unfortunately- that sending it abroad is the only way to have it properly serviced.  I would recommend to contact Optixxx in Germany. you can ask Frau Simonne Hauptmann for the cost of the full service and shipping back to Brazil.

 

https://www.fernopti...&caller=navlang

 

Seriuosly, the Dialyt is a good bino, high quality, If you have the T*P version (red letters) i would consider the repair as is phase coated and therefore competitive with new optical technology. Otherwise I see at least 250-300 eur (ca. 300-370 usd) investment to repair it, expensive, that is why i asked you if they have some additional emotional value (e.g. your father binos)

 

I just saw a few 10x40B Dialyts in german websites. the lowest price (not bids) is 350 Eur and can go up to 700 Eur after being recently serviced.

 

I think the latest 10x40B are at least 25 years old, but is a binocular for life.

 

Carlos

[Jadyr]

T*P

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[NDfarmer]

First off, what is wrong with your binocular?

This is not a do it yourself thing with the 10x40, the focus
is accomplished by moving the outer objective lens, see how it
moves for yourself. Not child's play, if you try to unscrew the
barrel.

So, don't do it.

Jerry

[Jadyr]

Not clean inside lens.
I will think what i will do. I will put pictures here. Thanks

[LoveWillSteerTheStars]

What does T and P signify?

For that matter, what is significant about the "B" version?

Is there a web page that explains the Zeiss abbreviation logic?

 

 If you have the T*P version (red letters) i would consider the repair as is phase coated and therefore competitive with new optical technology. Otherwise I see at least 250-300 eur (ca. 300-370 usd) investment to repair it, expensive, that is why i asked you if they have some additional emotional value (e.g. your father binos)

 

I just saw a few 10x40B Dialyts in german websites. the lowest price (not bids) is 350 Eur and can go up to 700 Eur after being recently serviced.

 

I think the latest 10x40B are at least 25 years old, but is a binocular for life.

 

Carlos

[pat in los angeles basin]

the post you are responding to is almost 4 yrs old.... Might want to send him a PM.    Pat

[LoveWillSteerTheStars]

the post you are responding to is almost 4 yrs old.... Might want to send him a PM.    Pat

This way sends a message to everyone who has subscribed to the thread.  More chance of finding the knowledge.

[pat in los angeles basin]

, Pat

[VonMaunder]

 

What does T and P signify?

For that matter, what is significant about the "B" version?

Is there a web page that explains the Zeiss abbreviation logic?

 

 If you have the T*P version (red letters) i would consider the repair as is phase coated and therefore competitive with new optical technology. Otherwise I see at least 250-300 eur (ca. 300-370 usd) investment to repair it, expensive, that is why i asked you if they have some additional emotional value (e.g. your father binos)

 

I just saw a few 10x40B Dialyts in german websites. the lowest price (not bids) is 350 Eur and can go up to 700 Eur after being recently serviced.

 

I think the latest 10x40B are at least 25 years old, but is a binocular for life.

 

Carlos

 

From garymh on Birdforum, Zeiss tech extraordinaire:

B="Brille" (German for spectacles) The binocular has rubber or twist up eyecups to use with spectacles

T=The Zeiss disignation for their lens coating

T*= A later version of the above coating

P=Phase corrected prisms