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Fungus problem within the lense cell

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23 replies to this topic

#1 Danny778

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Posted 05 July 2020 - 07:36 AM

Dear Cloudy community,

 

A friend of mine just purchased a second hand TS photoline 115/800. When we opened the scope for inspection we detected fungus spores within the lense cell.

What can be done with the given situation?

We have already wrote an email to Teleskop-Service regarding the matter, should get a reply soon.

 

Is there a company that deals with these kinds of problems?

 

Thanks in advance for your replies,

 

Dan.

Attached Thumbnails

  • IMG-20200705-WA0036.jpg
  • IMG-20200705-WA0035.jpg

Edited by Danny778, 05 July 2020 - 07:46 AM.


#2 StarDust1

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Posted 05 July 2020 - 08:06 AM

Dan, you can try to point the scope directly to the sun for a few hours, without any adapters attached to the endpoint.


Edited by StarDust1, 05 July 2020 - 08:15 AM.

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#3 bigdob24

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Posted 05 July 2020 - 08:29 AM

http://arksky.org/asoclean.htm 

This guy used to do stuff like cleaning and repair, not sure if he still does



#4 Richard O'Neill

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Posted 05 July 2020 - 11:19 AM

Assuming you can't return it for a full refund the next step would be to disassemble the lens elements for a thorough cleaning and surface assessment. If you do this yourself be sure to mark the individual elements and note their relative orientation to each other. If not done the fungus will eventually (if it hasn't already), permanently etch the surfaces. Also be sure to wear a face mast and disinfect all surfaces, including the cell, spacers and retaining ring.

 

Good luck.



#5 N3p

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Posted 05 July 2020 - 12:03 PM

In my opinion it would be better energy expenditure to return the telescope then spending time disassembling and to clean it. especially if there was no notes about the fungus in the selling add.. That fungus probably already ate the coating anyways.

 

Refund all the way.


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#6 Spikey131

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Posted 05 July 2020 - 12:32 PM

Sunlight will kill the fungus but not remove it.

 

The fungus may have done no damage, damaged the coating or etched the glass.  The only way to find out is to take it apart and clean it.  The cleaning part is easy.  The hard part is taking it apart, re-assembling and collimating.  And after all that, you might find that the coatings or glass are damaged.  It does look kinda bad.

 

If you can, send it back for a refund or have the seller clean it to your satisfaction.


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#7 HARRISON SCOPES

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Posted 05 July 2020 - 12:52 PM

That does look severe, it is unlikely to ever clean completely satisfactorily.
Return it if you can
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#8 stevew

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Posted 05 July 2020 - 01:00 PM

Dear Cloudy community,

 

A friend of mine just purchased a second hand TS photoline 115/800. When we opened the scope for inspection we detected fungus spores within the lense cell.

What can be done with the given situation?

 

Dan.

Return it to the seller, and get your money back.



#9 StarHugger

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Posted 05 July 2020 - 01:45 PM

Definatly return it, if you clean it yourself and the coatings are damaged then likely it wont be worth much and you will wish you had returned it. Hot potato can be a disappointing game to play...

#10 gnowellsct

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Posted 05 July 2020 - 11:22 PM

I sent my former Vixen back to Japan to get cleaned due to fungus issues.

 

So one alternative is to send it to  TS.  I assume that means it goes back to China.  

 

There may be fees involved, a good company will not make these prohibitive.

 

Greg N



#11 Danny778

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Posted 08 July 2020 - 03:01 PM

I appreciate everyone's input. Thank you all very much.

No answer yet from Telescope-Express..
Will post what answer I get.

It's really unfortunate, this is my friend's first scope he aver got. Hope we will be able to resolve this unfortunate situation.

Thanks everyone again for your help and input.

Clear skies!

#12 Eigen

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Posted 08 July 2020 - 03:08 PM

Fungus growth of that ammount doesn't just suddenly appear. I would return it to the seller asap, unless it was disclosed. I would not spend the money trying to have the lenses cleaned, there is a good chance that etching of the glass has occured imo.

Regards,
Eigen

#13 Bomber Bob

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Posted 08 July 2020 - 03:12 PM

- Looks like active growth to me.

 

- Seepage at one point along the lens edge as the original moisture source.

 

If the Seller didn't mention it, I'd demand a refund.


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#14 telfish

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Posted 08 July 2020 - 05:47 PM

When you get the "Tree" branch effect it usually means goodbye coatings and etching of glass surface. A few spots might be cleanable, this likely not. Ask for a refund.



#15 Danny778

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Posted 09 July 2020 - 02:45 AM

TS replyed today:

Hi,
If the fungus is between the lenses, that's pretty complicated. You have to disassemble the lens for cleaning. So write down which lens is in which position and orientation in the frame. Try cleaning with alcohol first. That tolerates the glass and also the remuneration. I once read that acetic acid should help. So put the lentils in dilute acetic acid and let it work. The effect can be increased by slightly warming the acetic acid. But she can't cook! This is not supposed to be that good. I didn't try it myself, so that's at your own risk. The mushroom doesn't like UV light either. Unfortunately, the UV antile of the sun is far from sufficient. Then after successful cleaning the lens has to be reassembled and adjusted. Adjustment is only possible with a lot of experience and the best thing is to have an optical bench at your disposal. Companies such as By the way, Zeiss and Leica do not accept fungus-infested optics for cleaning. We shouldn't do that either. Regards Max

------------------

I just wonder if the fact that humidity was ever able to get in to the lense cell is due to bad manufacturing in the first place.. but that's just my opinion.

I think my friend will return it to the guy who sold it to him. Quite an unfortunate situation all around.

Thank you all for the replies it is much appreciated.

Cheers and clear skies!!

Dan

Edited by Danny778, 09 July 2020 - 02:49 AM.


#16 AdamJ

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Posted 10 July 2020 - 06:26 AM

I can see you having issues returning it to be honest. Anyone willing to sell a scope in that condition is not going to want it back.
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#17 daquad

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Posted 10 July 2020 - 10:59 AM

I can see you having issues returning it to be honest. Anyone willing to sell a scope in that condition is not going to want it back.

Hopefully you used Paypal.  If so make a claim and you will get your money back.  You will have to pay to ship it back, however.

 

Dom Q.



#18 junomike

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Posted 10 July 2020 - 04:21 PM

TS replyed today:

Hi,
If the fungus is between the lenses, that's pretty complicated. You have to disassemble the lens for cleaning. So write down which lens is in which position and orientation in the frame. Try cleaning with alcohol first. That tolerates the glass and also the remuneration. I once read that acetic acid should help. So put the lentils in dilute acetic acid and let it work. The effect can be increased by slightly warming the acetic acid. But she can't cook! This is not supposed to be that good. I didn't try it myself, so that's at your own risk. The mushroom doesn't like UV light either. Unfortunately, the UV antile of the sun is far from sufficient. Then after successful cleaning the lens has to be reassembled and adjusted. Adjustment is only possible with a lot of experience and the best thing is to have an optical bench at your disposal. Companies such as By the way, Zeiss and Leica do not accept fungus-infested optics for cleaning. We shouldn't do that either. Regards Max

------------------

I just wonder if the fact that humidity was ever able to get in to the lense cell is due to bad manufacturing in the first place.. but that's just my opinion.

I think my friend will return it to the guy who sold it to him. Quite an unfortunate situation all around.

Thank you all for the replies it is much appreciated.

Cheers and clear skies!!

Dan

Their reply is astounding ridiculous......IMO. 

To expect someone to go through all that is just "Run-a-round" talk (again IMO).

 

Send........It......Back.................FAST!


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#19 RichA

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Posted 10 July 2020 - 09:08 PM

Hopefully you used Paypal.  If so make a claim and you will get your money back.  You will have to pay to ship it back, however.

 

Dom Q.

He shouldn't even be required to do that.  One benefit of buying on Ebay, if you buy there, the unscrupulous seller pays the lot.



#20 daquad

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Posted 11 July 2020 - 01:05 PM

He shouldn't even be required to do that.  One benefit of buying on Ebay, if you buy there, the unscrupulous seller pays the lot.

Interesting.  Didn't realize he bought it on Ebay.  Doesn't Ebay own Paypal?  Too bad Paypal doesn't have the same policy re shipping.

 

Dom Q.


Edited by daquad, 11 July 2020 - 01:08 PM.


#21 AndresEsteban

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Posted 11 July 2020 - 11:33 PM

Dear Cloudy community,

 

A friend of mine just purchased a second hand TS photoline 115/800. When we opened the scope for inspection we detected fungus spores within the lense cell.

What can be done with the given situation?

We have already wrote an email to Teleskop-Service regarding the matter, should get a reply soon.

 

Is there a company that deals with these kinds of problems?

 

Thanks in advance for your replies,

 

Dan.

Dan, I think the situation here is critical and by that i mean bad, reallym but really bad! From my point of view, the coating was eaten by the fungus and after that the glass itself was etched... Let's pray not, but I think this is the case... Don't know what Teleskop-Service will answer but probably, the triplet is lost. Unfortunately.

Regards
Andy



#22 daquad

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Posted 13 July 2020 - 06:57 PM

Dan, I think the situation here is critical and by that i mean bad, reallym but really bad! From my point of view, the coating was eaten by the fungus and after that the glass itself was etched... Let's pray not, but I think this is the case... Don't know what Teleskop-Service will answer but probably, the triplet is lost. Unfortunately.

Regards
Andy

I wouldn't say the lens is lost.  Even if the glass is etched, I'll bet the scope would still be color free and put up some sharp images.

 

However, that is not what the buyer paid for.  So I would take advantage of the Paypal/Ebay policy, return it and get a refund.

 

Dom Q.



#23 AdamJ

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Posted 15 July 2020 - 03:30 AM

I wouldn't say the lens is lost. Even if the glass is etched, I'll bet the scope would still be color free and put up some sharp images.

However, that is not what the buyer paid for. So I would take advantage of the Paypal/Ebay policy, return it and get a refund.

Dom Q.



#24 AdamJ

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Posted 15 July 2020 - 03:31 AM

If you are going to send it back via PayPal or eBay do it fast as there is something like a 30 day time limit to start a dispute.


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