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a77
Joined: 20 Mar 2012 Posts: 28
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Posted: Sun Apr 08, 2012 6:23 pm Post subject: Fungus or Coating problem? |
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a77 wrote:
I just saw on ebay some pictures of a lens with some spots. Is this fungus or a coating problem? The spots are between the 2 glued lens elements..:
http://www.iscanmanuals.com/ebay/jlbeek/03102010pic56.jpg
http://www.iscanmanuals.com/ebay/jlbeek/03102010pic55.jpg _________________ Manual focus selection:
Kilfitt Fern-Kilar 5.6/400, Multi-Kilar, Pan-Tele-Kilar 4/300, Meyer Orestor 2.8/135, Isco-Göttingen 2.8/35 Westron and Westromat.
To sell: Steinheil Culminar 4.5/135 M39
Fotos at Flickr: http://www.flickr.com/photos/50653565@N08/ |
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indianadinos
Joined: 06 Jul 2008 Posts: 1310 Location: Toulouse, France
Expire: 2011-12-05
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Posted: Sun Apr 08, 2012 6:57 pm Post subject: |
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indianadinos wrote:
Hi,
If the spots are between two glued lens elements, it's unlikely to be a fungus or coating issue ...
I would say, instead, an adhesive issue (although it's hard to say just looking at the pictures) ...
My 2c ...
Other opinions ? _________________ Please visit my blogs Shooting with a Pentax K10D / FF Visions
Takumar: 24/3.5, 28/3.5, 35/2, 35/3.5, 50/1.4, 55/1.8, 85/1.8, 105/2.8, 120/2.8, 135/3.5, 150/4, 200/4
Pentax-K: M28/2.8, K28/3.5, M50/1.4, A50/1.7, M50/4 Macro, K85/1.8, K105/2.8, K135/2.5, M200/4, M70-150/4
Zeiss: Flektogon 20/2.8, 20/4, 35/2.4, 35/2.8, Tessar 50/2.8, Pancolar 50/1.8, Biotar 58/2, Sonnar 135/3.5, Sonnar 180/2.8
Meyer: Primagon 35/4.5, Domiplan 50/2.8, Oreston 50/1.8, Primoplan 58/1.9, Trioplan 100/2.8, Orestor 100/2.8, Orestor 135/2.8
Schacht/Steinheil: Travenar 90/2.8, Travenon 135/4.5, Quinar 135/2.8, Quinar 135/3.5
Russian: MIR 37B, Industar 50/3.5, Helios 44M & 44M-2, Jupiter 37A
P6: Flektogon 50/4, Biometar 80/2.8, Orestor 300/4
Nikkor: Nikkor-O 35/2, Micro 55/3.5, Nikkor-S 50/1.4, Nikkor-Q 135/2.8
Fuji: EBC 28/3.5, EBC 55/3.5 Macro, EBC 135/2.5
Misc Lenses: Kiron 105/2.8 Macro, Tamron SP90/2.5
... and a few other Vivitar, Tamron, Sigma and Soligor lenses ...
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inombrable
Joined: 20 Mar 2012 Posts: 545 Location: Salamanca, Mexico
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Posted: Sun Apr 08, 2012 9:29 pm Post subject: |
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inombrable wrote:
In my opinion they look like fungus, specially the spot just on the lower left of the white circle below "munchen" has a fungus like pattern.
This week I cleaned a nikon lens that look very much like this.
But like indianadinos said not very easy to know for sure by looking at the pictures. |
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a77
Joined: 20 Mar 2012 Posts: 28
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Posted: Wed Apr 11, 2012 12:47 pm Post subject: |
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a77 wrote:
As I just heard from a former employee of Kilfitt, it is indeed fungus, eating the Canada Balm between the lenses. He says, nothing one can do :=(
(besides keeping it dry) _________________ Manual focus selection:
Kilfitt Fern-Kilar 5.6/400, Multi-Kilar, Pan-Tele-Kilar 4/300, Meyer Orestor 2.8/135, Isco-Göttingen 2.8/35 Westron and Westromat.
To sell: Steinheil Culminar 4.5/135 M39
Fotos at Flickr: http://www.flickr.com/photos/50653565@N08/ |
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indianadinos
Joined: 06 Jul 2008 Posts: 1310 Location: Toulouse, France
Expire: 2011-12-05
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Posted: Wed Apr 11, 2012 5:47 pm Post subject: |
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indianadinos wrote:
Well, in such a case is truly an adhesive issue ...
If you feel comfortable with mechanics (and if the lens is offered really cheap), you could buy it and try to fix it ...
It's not really easy to separate the elements for gluing them back again, but it could be worth the price if the lens
is a really good performer ...
My 2c ... _________________ Please visit my blogs Shooting with a Pentax K10D / FF Visions
Takumar: 24/3.5, 28/3.5, 35/2, 35/3.5, 50/1.4, 55/1.8, 85/1.8, 105/2.8, 120/2.8, 135/3.5, 150/4, 200/4
Pentax-K: M28/2.8, K28/3.5, M50/1.4, A50/1.7, M50/4 Macro, K85/1.8, K105/2.8, K135/2.5, M200/4, M70-150/4
Zeiss: Flektogon 20/2.8, 20/4, 35/2.4, 35/2.8, Tessar 50/2.8, Pancolar 50/1.8, Biotar 58/2, Sonnar 135/3.5, Sonnar 180/2.8
Meyer: Primagon 35/4.5, Domiplan 50/2.8, Oreston 50/1.8, Primoplan 58/1.9, Trioplan 100/2.8, Orestor 100/2.8, Orestor 135/2.8
Schacht/Steinheil: Travenar 90/2.8, Travenon 135/4.5, Quinar 135/2.8, Quinar 135/3.5
Russian: MIR 37B, Industar 50/3.5, Helios 44M & 44M-2, Jupiter 37A
P6: Flektogon 50/4, Biometar 80/2.8, Orestor 300/4
Nikkor: Nikkor-O 35/2, Micro 55/3.5, Nikkor-S 50/1.4, Nikkor-Q 135/2.8
Fuji: EBC 28/3.5, EBC 55/3.5 Macro, EBC 135/2.5
Misc Lenses: Kiron 105/2.8 Macro, Tamron SP90/2.5
... and a few other Vivitar, Tamron, Sigma and Soligor lenses ...
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