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BurstMox
Joined: 04 Dec 2011
Posts: 1998
Location: France
Expire: 2016-08-02
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 Posted: Wed Sep 29, 2021 9:30 am Post subject: Is it fungus or hair? Tair-11 |
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BurstMox wrote:
Hello,
I have checked a lens that was stored for 2-3 years (dry, luminous place). I noted this inside. It has damaged to coating. I was wondering if it was a hair, that, with time, damaged the coating, or a fungus.
#1
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Pierre
sovietlenses.fr
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kiddo
Joined: 29 Jun 2018
Posts: 1120
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| Posted: Wed Sep 29, 2021 10:29 am Post subject: |
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kiddo wrote:
I could never imagine a hair damaging the coatings . A fungus can do that damage, with hair or not , with visible particles or not. A hair could help grow fungus , but meantime inside the optics ,why would you assume the coating have been affected ? Of course they could be , but first, should cla to evaluate it. |
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jamaeolus
Joined: 19 Mar 2014
Posts: 2927
Location: Eugene
Expire: 2015-08-20
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| Posted: Wed Sep 29, 2021 4:58 pm Post subject: |
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jamaeolus wrote:
I would say hair, or more likely, fiber. The damaged coating may be unrelated.
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Blazer0ne
Joined: 12 Sep 2018
Posts: 836
Expire: 2024-12-07
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| Posted: Wed Sep 29, 2021 7:48 pm Post subject: |
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Blazer0ne wrote:
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Last edited by Blazer0ne on Tue Feb 22, 2022 5:41 pm; edited 1 time in total |
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cbass
Joined: 27 Jul 2019
Posts: 441
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| Posted: Thu Sep 30, 2021 7:37 pm Post subject: |
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cbass wrote:
That looks like a hair or fiber of some sort. Two of them. I also don't see coating damage, but if you do then I agree it might be unrelated. Unless the coating damage is from someone that took the lens apart, scrubbed it like a mad man and left those fibers in there for you. Do those fibers even have an effect on IQ? I would think there is a good chance they don't have any impact. |
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BurstMox
Joined: 04 Dec 2011
Posts: 1998
Location: France
Expire: 2016-08-02
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| Posted: Thu Sep 30, 2021 7:42 pm Post subject: |
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BurstMox wrote:
It's not very easy to show on picture, but yeah, it damaged the coating. The damage follow the "hair" shape, damages are mostly visibles on the curves (corners) of the hair. So I would say it act like fungus, but I'm a bit puzzle by the look of this fungus, if it is.
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Blazer0ne
Joined: 12 Sep 2018
Posts: 836
Expire: 2024-12-07
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| Posted: Thu Sep 30, 2021 8:22 pm Post subject: |
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Blazer0ne wrote:
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Last edited by Blazer0ne on Tue Feb 22, 2022 5:41 pm; edited 1 time in total |
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D1N0
Joined: 07 Aug 2012
Posts: 2491
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| Posted: Thu Sep 30, 2021 9:31 pm Post subject: |
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D1N0 wrote:
Maybe it was already there during the coating process. So maybe it didn't damage the coating but prevented it. Pretty low serial number there. Mine's 024567 (also KMZ)
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Blazer0ne
Joined: 12 Sep 2018
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| Posted: Fri Oct 01, 2021 8:49 pm Post subject: |
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Blazer0ne wrote:
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Last edited by Blazer0ne on Tue Feb 22, 2022 5:41 pm; edited 1 time in total |
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BurstMox
Joined: 04 Dec 2011
Posts: 1998
Location: France
Expire: 2016-08-02
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| Posted: Fri Oct 01, 2021 8:54 pm Post subject: |
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BurstMox wrote:
| Blazer0ne wrote: |
| D1N0 wrote: |
| Maybe it was already there during the coating process. So maybe it didn't damage the coating but prevented it. Pretty low serial number there. Mine's 024567 (also KMZ) |
Oh, the Tahair-11! |
 
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sovietlenses.fr
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