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zgniewany
Joined: 24 Feb 2015
Posts: 5
Location: Roosendaal, Nl
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 Posted: Sun Oct 04, 2015 3:48 pm Post subject: Rollei-HFT Sonnar 2.8/135 - fungus problem |
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zgniewany wrote:
Hello. Does anybody know how I can get inside of this lens to clean fungus?
Last edited by zgniewany on Tue Oct 06, 2015 1:05 pm; edited 1 time in total |
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kds315*
Joined: 12 Mar 2008
Posts: 16541
Location: Weinheim, Germany
Expire: 2021-03-09
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| Posted: Sun Oct 04, 2015 4:19 pm Post subject: Re: Rollei-HFT Sonnar 2.8/135 |
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kds315* wrote:
| zgniewany wrote: |
Hello. Does anybody know how I can get inside of this lens to clean fungus?
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Welcome here! I'm sure someone here has an idea...
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zgniewany
Joined: 24 Feb 2015
Posts: 5
Location: Roosendaal, Nl
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| Posted: Sun Oct 04, 2015 4:57 pm Post subject: |
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zgniewany wrote:
Thx 
I have hope for that. This lens cost me only 25 euro, but for the Clean, Lubricate and Adjust in Kamera-Service they want 95 euro so first i wanna try to clean fungus by self |
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simbon4o
Joined: 19 Dec 2011
Posts: 390
Location: Bulgaria
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| Posted: Sun Oct 04, 2015 5:03 pm Post subject: |
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simbon4o wrote:
Looks like fungus but... I can't be 100% sure from looking at this photo.
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zgniewany
Joined: 24 Feb 2015
Posts: 5
Location: Roosendaal, Nl
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| Posted: Sun Oct 04, 2015 5:08 pm Post subject: |
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zgniewany wrote:
It's fungus (also on the rear lens). This same was on Orestegor 4/200 (but this lens is much easier to clean)
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Asahi Pentax Spotmatic F / ESII + Jupiter 9 2/85; Super-Multi-Coated MACRO-TAKUMAR 4/100; Super-Multi-Coated TAKUMAR 2.8/105; SMC Pentax 2.5/135; Rollei-HFT Sonnar 2.8/135; Meyer-Optik Gorlitz Orestegor 4/200 |
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aoleg
Joined: 22 Feb 2008
Posts: 1389
Location: Berlin, DE
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| Posted: Sun Oct 04, 2015 9:55 pm Post subject: |
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aoleg wrote:
I don't have experience with this particular model, but I dismantled lots of lenses. First I would try to undo the front ring (by using a rubber piece). If the front ring is part of the front assembly (as is the case e.g. with CZJ MC Sonnar 135/3.5), the entire assembly can be usually removed by undoing one to three grub screws and either simply lifting or unscrewing the front part. After that, you'll have access to the front lens group (I suspect fungus grows on the last element of the front group here).
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zgniewany
Joined: 24 Feb 2015
Posts: 5
Location: Roosendaal, Nl
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| Posted: Tue Oct 06, 2015 12:59 pm Post subject: |
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zgniewany wrote:
I see the first problem - the ring with the name of the lens is bigger than screw for filters. The lens is built differently than CZJ. And I see only 3 little screws on focus ring plus 7 screws on Rollei mount
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Canon EOS 50D
Asahi Pentax Spotmatic F / ESII + Jupiter 9 2/85; Super-Multi-Coated MACRO-TAKUMAR 4/100; Super-Multi-Coated TAKUMAR 2.8/105; SMC Pentax 2.5/135; Rollei-HFT Sonnar 2.8/135; Meyer-Optik Gorlitz Orestegor 4/200 |
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RSalles
Joined: 12 Aug 2012
Posts: 1373
Location: Brazil - RS / South
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| Posted: Tue Oct 06, 2015 4:05 pm Post subject: |
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RSalles wrote:
YMMV, but this mount is not that simple to reassemble correctly. If you have a previous experience with QBM lenses, go ahead. If not, better send it to a technician. In general, I prefer to "learn" in poor condition lenses before going to more expensive glasses on the same mount.
Cheers,
Renato
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zgniewany
Joined: 24 Feb 2015
Posts: 5
Location: Roosendaal, Nl
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| Posted: Tue Oct 13, 2015 2:58 pm Post subject: |
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zgniewany wrote:
I think I won't be removing fungus for this moment. I can't find any information about disassembling. This is one of the reasons. Second one is... I made some photos on the last weekend without adapter.
ISO 100, 1/250s, f4
ISO 100, 1/60s, f4
What do you think about bokeh and sharpness?
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Canon EOS 50D
Asahi Pentax Spotmatic F / ESII + Jupiter 9 2/85; Super-Multi-Coated MACRO-TAKUMAR 4/100; Super-Multi-Coated TAKUMAR 2.8/105; SMC Pentax 2.5/135; Rollei-HFT Sonnar 2.8/135; Meyer-Optik Gorlitz Orestegor 4/200 |
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shapencolour
Joined: 03 Oct 2013
Posts: 270
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| Posted: Wed Oct 14, 2015 1:29 pm Post subject: |
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shapencolour wrote:
Witaj zgniewany,
That amount of fungus should not have any sigificant impact on image quality.So if you can stand it,leave it as it is.Just store the lens in a dry place with low humidity to prevent further fungus growth.
BTW:pictures look good to me,especialy if they werer taken without an adapter. 
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