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aleksanderpolo
Joined: 24 Jan 2010
Posts: 684
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 Posted: Fri Mar 25, 2011 4:29 pm Post subject: Minolta lens cleanable? |
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aleksanderpolo wrote:
Just curious: saw a lot of Minolta lens with internal haze in their description, is it fairly common and are they cleanable? If so, how should one proceed to get to the inside of the lens? From the front or from the mount? Thanks. |
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Fri Mar 25, 2011 5:03 pm Post subject: Re: Minolta lens cleanable? |
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Attila wrote:
| aleksanderpolo wrote: |
| Just curious: saw a lot of Minolta lens with internal haze in their description, is it fairly common and are they cleanable? If so, how should one proceed to get to the inside of the lens? From the front or from the mount? Thanks. |
Not common, if described 'haze' is just fine dust inside that is common and cleanable and mostly don't need to clean. It makes shoots contrast less, but because you will use on digital body or scan negatives very easy to fix it in post processing. I bought several Minolta lenses none of them had haze.
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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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aleksanderpolo
Joined: 24 Jan 2010
Posts: 684
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| Posted: Fri Mar 25, 2011 5:20 pm Post subject: |
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aleksanderpolo wrote:
Thanks Attila. Have you tried opening one up or know where I can find instructions/direction of doing so? |
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Fri Mar 25, 2011 11:07 pm Post subject: |
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Attila wrote:
Generally all old prime is very similar pickup one instruction from any lens cleaning and use it as guide. If you are unsure take a photo at each steps it helps to you when you will build lens again from parts and.... you can publish here as a nice tutorial 
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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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aleksanderpolo
Joined: 24 Jan 2010
Posts: 684
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| Posted: Sat Mar 26, 2011 6:22 am Post subject: |
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aleksanderpolo wrote:
I was hoping I can find someone else's tutorial (and their what not to do) before opening mine, I am kinda afraid to open from the mount for fear that I will break the aperture mechanism, so I am hoping that it is supposed to be open from the front element.  |
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calvin83
Joined: 12 Apr 2009
Posts: 7554
Location: Hong Kong
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| Posted: Sat Mar 26, 2011 6:40 am Post subject: |
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calvin83 wrote:
| aleksanderpolo wrote: |
| I was hoping I can find someone else's tutorial (and their what not to do) before opening mine, I am kinda afraid to open from the mount for fear that I will break the aperture mechanism, so I am hoping that it is supposed to be open from the front element. |
There was a Japanese site ope repairing Minolta lens but it is now gone. I regard that I did not save it to my HDD.
Internet Archive Snapshot(All photos are gone)
http://replay.waybackmachine.org/20090415094540/http://sa_ss.at.infoseek.co.jp/minolta/
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https://lensfever.com/
https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
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aleksanderpolo
Joined: 24 Jan 2010
Posts: 684
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| Posted: Sat Mar 26, 2011 7:38 am Post subject: |
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aleksanderpolo wrote:
Thanks but the pages are not archived...  |
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std
Joined: 09 Feb 2010
Posts: 1827
Location: Bulgaria
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| Posted: Sat Mar 26, 2011 9:22 am Post subject: |
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std wrote:
i remember someone here was posting recently a very detailed disassembly manual.. but cannot find it unfortunately. 
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Stefan
My lens list:
SLR MD: Rokkor 1,7/50 Exakta: Kilfitt-Makro-Kilar E 3.5/4cm; CZJ 2/50 Pancolar;M42: CZJ 2.8/50 Tessar; Mir-1B 2.8/37; Jupiter-9 2/85 T-mount: Tamron 5.9/200; Tamron 6.9/300; Tamron 7.5/400 C-mount: Cosmicar 1.8/50 Y/S: Sun 3.5/38-90, Sun 4/70-210 RF Contax RF: Jupiter-8 2/50; Contax G:CZ 2,8/21 Biogon T; CZ 2,8/28 Biogon T; CZ 2/35 Planar T; CZ 2/45 Planar T; CZ 2,8/90 Sonnar T |
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aleksanderpolo
Joined: 24 Jan 2010
Posts: 684
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| Posted: Sun Mar 27, 2011 4:48 am Post subject: |
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aleksanderpolo wrote:
I only found a video about converting to EOS mount, but not about disassembling and cleaning inner elements... |
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std
Joined: 09 Feb 2010
Posts: 1827
Location: Bulgaria
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| Posted: Mon Mar 28, 2011 9:58 am Post subject: |
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std wrote:
here's one for cleaning
http://www.youtube.com/watch?v=u9sK-iDytms
_________________
Stefan
My lens list:
SLR MD: Rokkor 1,7/50 Exakta: Kilfitt-Makro-Kilar E 3.5/4cm; CZJ 2/50 Pancolar;M42: CZJ 2.8/50 Tessar; Mir-1B 2.8/37; Jupiter-9 2/85 T-mount: Tamron 5.9/200; Tamron 6.9/300; Tamron 7.5/400 C-mount: Cosmicar 1.8/50 Y/S: Sun 3.5/38-90, Sun 4/70-210 RF Contax RF: Jupiter-8 2/50; Contax G:CZ 2,8/21 Biogon T; CZ 2,8/28 Biogon T; CZ 2/35 Planar T; CZ 2/45 Planar T; CZ 2,8/90 Sonnar T |
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dnas
Joined: 14 Nov 2008
Posts: 488
Location: Japan
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| Posted: Wed Jun 15, 2011 2:52 am Post subject: |
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dnas wrote:
Which lens are we talking about? I've opened as lot of Minolta MC and MD lenses.
And haze is very uncommon. Fungus is quite common, and this will often damage the coating on earlier MC lenses. |
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