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Problems with Victory 10x42 T FL (3 Viewers)
- Thread starter Glimmer
- Start date
joe101
Well-known member
Have you tried 100% isopropyl alcohol to clean it ?
Glimmer
Well-known member
Yes
Really it's not stain: it's something that has attacked or reaction with the coating. Nothing to do I think
Kammerdiner
Well-known member
I hate to say this, and hope I'm wrong, but given the somewhat circular, swirly orientation of the marks, it suggests coating damage caused by too vigorous cleaning. Maybe the Lotutec has been damaged?
Mark
Mark
Glimmer
Well-known member
Just impossible. I'm very careful cleaning. Only blowing most of the times, or soft cloths and very soft strenght (these few times)
Kammerdiner
Well-known member
Good enough, Glimmer. I hoped I was wrong.
But why would fungus look like it's running around in circles and stay away from the edges?
I'm stumped.
Mark
But why would fungus look like it's running around in circles and stay away from the edges?
I'm stumped.
Mark
Glimmer
Well-known member
I dont know. But I'm sure it's just impossible to get cleaning scratches in these bins using soft clothes. Couldnt be so fragile. Let's see what Zeiss say
RJM
Don't Worry, Be Happy!
At this point you have nothing to lose using more intensive method. Just in case it is a buildup of gunk on the outside I would try a cleaning agent too. You can make your own or buy lens cleaner from your local camera specialist. Zeiss, Nikon, Fuji all make cleaners. Some say ROR might be the best.
To make your own, mix 1 small drop of clear liquid dishwashing cleanser (no antibacterial agents, unscented) with 3ml of medical-grade isopropyl alcohol and dilute with ~7ml of distilled water.
Follow the CZ lens cleaning instructions. Good luck.
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Hermann
Well-known member
Good question. I've never seen anything like it, and I've seen some badly damaged coatings over the years.
The best way to check is to use a magnifiying glas with a fairly high magnification (I prefer 6x or 8x). Move it towards the eyepiece lens until some speck of dust on the lens is sharp and check the funny spots. If there isn't any clearly visible damage to the lens or the coating, continue moving closer, thus focusing on the rear of the eyepiece lens. You should then be able to determine is there's anything on the rear of the eyepiece lens.
Fungus in particular is pretty easy to identify this way. But that doesn't look like fungus to me at all.
Hermann
opticallydense
Member
the strange thing is the radial arrangement of the artifact. if it was fungus or something biological, why would it grow in such a pattern. If it was coming from the inside, again, why would material deposit itself in such an arrangement.
The only logical explanation to me, is that the coatings were affected by some typically spiral cleaning pattern, and then this dirt or other artifact got bonded to the coating or glass. I am not suggesting the OP did anything to damage the coating, but that perhaps the coating itself was/is faulty.
The only logical explanation to me, is that the coatings were affected by some typically spiral cleaning pattern, and then this dirt or other artifact got bonded to the coating or glass. I am not suggesting the OP did anything to damage the coating, but that perhaps the coating itself was/is faulty.
Greetings. I agree with above discussion that more magnification is needed to determine if this fungi growth or not. If not, and from my photography days, this could be the separation of the coating from the front element of the lens. In either cases, Zeiss service should take care of it. Best of luck.
RJM
Don't Worry, Be Happy!
Yes, BUT alcohol alone cannot always do the job. The cleaner needs an emulsifying agent too like the dishwashing soap I mentioned in the DIY "recipe".
No matter though, as it looks like fungus to me. The fine hair like structures in the bigger blobs is the give away.
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dalat
...
That's why I asked if it's in- or outside. If it's inside, it can't be much else than fungus (which, according to a recent test, is impossible in a Zeiss FL
). If outside, it must be dirt or damage, both of which should be detectable as unevenness of the surface, I guess, seen the extend of these spots.From the photo, it looks rather like it's inside. There are small dust particles clearly are on the outer surface, and compared to those the big spots seem further back. But I think the owner should be easyly able to assess that with the bino in hand.
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My 3 year old 10x42 T*FL have a similar appearance. It began a few months ago and has gradually worsened. The defect is internal - there are minor scratches on the surface of the lens and the defects clearly lie deeper. The glass overlying the defects is scratch/abrasion free.
I will post some photos tomorrow (daylight).
I will post some photos tomorrow (daylight).
