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WolverineX
Joined: 19 Apr 2009 Posts: 1693 Location: Zagreb , Croatia , Europe
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Posted: Thu Dec 03, 2009 1:48 pm Post subject: help disassembling Sigma-XQ 100mm 2.8 macro lens |
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WolverineX wrote:
I got this lens over eBay from seller Camera$. Tried it and as a regular 100mm it seemed fine, but then i tried macro capability and photo got very soft (dreamy one might say...too bad it only shows up in macro mode so i can't use it for portraits). Then i looked through the lens towards the light and i saw that one element inside is dirty...like someone cleaned a window with dirty cloth and it got dry showing white marks. It seems that they cleaned it sloppy, so i need to clean it again.
Can anybody help me by telling me how to disassemble the lens, or does anybody know where on the web can i find repair manual, so i do not go in blind? _________________ my tools:Oly E-M5 + 45mm/1.8 + Oly E-520 + 12-60 + 14-42 + 70-300 + Sigma 105mm + FL-50R + EC20 + SRF-11 ring flash
http://forum.mflenses.com/wolverinex-testing-my-lenses-series-link-list-t39524.html |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Thu Dec 03, 2009 1:49 pm Post subject: |
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Attila wrote:
Macro mode is factory defected, mine lens is same. So I believe you can't fix it. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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WolverineX
Joined: 19 Apr 2009 Posts: 1693 Location: Zagreb , Croatia , Europe
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Posted: Thu Dec 03, 2009 7:55 pm Post subject: |
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WolverineX wrote:
Attila wrote: |
Macro mode is factory defected, mine lens is same. So I believe you can't fix it. |
i believe it isn't the case with my lens. i tried macro and it works as i assume it should, just need to clean that one glass element that has marks like someone tried to clean it and failed
we'll see if i can find how to disassemble and reassemble the lens to try to clean it _________________ my tools:Oly E-M5 + 45mm/1.8 + Oly E-520 + 12-60 + 14-42 + 70-300 + Sigma 105mm + FL-50R + EC20 + SRF-11 ring flash
http://forum.mflenses.com/wolverinex-testing-my-lenses-series-link-list-t39524.html |
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hk300
Joined: 30 Oct 2008 Posts: 1041 Location: Hong Kong
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Posted: Fri Dec 04, 2009 4:52 am Post subject: Re: help disassembling Sigma-XQ 100mm 2.8 macro lens |
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hk300 wrote:
WolverineX wrote: |
I got this lens over eBay from seller Camera$. Tried it and as a regular 100mm it seemed fine, but then i tried macro capability and photo got very soft (dreamy one might say...too bad it only shows up in macro mode so i can't use it for portraits). Then i looked through the lens towards the light and i saw that one element inside is dirty...like someone cleaned a window with dirty cloth and it got dry showing white marks. It seems that they cleaned it sloppy, so i need to clean it again.
Can anybody help me by telling me how to disassemble the lens, or does anybody know where on the web can i find repair manual, so i do not go in blind? |
white marks? haze?
This could mean that the coating of that lens element is gone, and the lens cannot be fixed.
In this case, can you return the lens?
IMO ... Sigma has one of the poorest lens coating of all the makes i have seen (and i have seen a lot of lenses!)
Percentage-wise i have seen quite a few Sigma lenses with gone bad lens coating. _________________ No longer member , please don't try to contact to him |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Fri Dec 04, 2009 11:45 am Post subject: |
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Attila wrote:
My lens is immaculate untouched, very poor performer in macro mode and works great as normal lens. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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Jieffe
Joined: 04 Nov 2007 Posts: 754 Location: Belgium
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Posted: Sun Dec 06, 2009 1:11 pm Post subject: |
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Jieffe wrote:
Attila wrote: |
My lens is immaculate untouched, very poor performer in macro mode and works great as normal lens. |
Mine too. It's a lemon in macro mode. |
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Eugen Mezei
Joined: 17 May 2008 Posts: 266
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Posted: Sat Jun 11, 2016 4:42 am Post subject: |
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Eugen Mezei wrote:
Nobody opened it? I have oily blades on mine. |
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