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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Fri Sep 26, 2014 6:57 am Post subject: soligor 180mm 3.5 iris issue maybe? |
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Layer-cake wrote:
hey everyone, came across a soligor 180mm as part of a lens set I bought and I've noticed the aperture blades don't open fully at 3.5. its a pre set lens and I'm just wondering if anyone is familiar with it and can tell me if this is a designed or if i need to address the issue.
picked up the set for a steal at $90 and it included a takumar 85mm 1.8 and a 28mm 3.5 with original hoods so I'm not going to be disappointed if the 180 is a bit buggered;) |
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mo
Joined: 27 Aug 2009 Posts: 8979 Location: Australia
Expire: 2016-07-30
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Posted: Fri Sep 26, 2014 7:09 am Post subject: |
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mo wrote:
Do you have a photo of the blades? _________________ Moira, Moderator
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Fri Sep 26, 2014 7:29 am Post subject: |
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Layer-cake wrote:
just a quick photo from my phone:
I think there is an issue, i wasnt sure if oil on a present set lens blades would affect it but I just removed the front barrel and managed to massage the blades all the way open........another project to do I suppose. |
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WolverineX
Joined: 19 Apr 2009 Posts: 1693 Location: Zagreb , Croatia , Europe
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Posted: Fri Sep 26, 2014 7:37 am Post subject: |
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WolverineX wrote:
probably too much oil on the blades that prevents fully opening the aperture. use lighter fluid to clean the blades _________________ 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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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Fri Sep 26, 2014 7:51 am Post subject: |
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Layer-cake wrote:
yeah I think I'm going to go that route, started removing the back mount but its proving rather difficult as the back end seems to be a solid milled piece and I can't see a straight forward way to remove it. first time working on a preset, done quite a few auto diaphragm ones, which seem to be a bit easier;) |
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kenetik
Joined: 02 Mar 2014 Posts: 521
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Posted: Fri Sep 26, 2014 3:25 pm Post subject: |
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kenetik wrote:
Def looks like oil on the blades. I've had bad luck with Soligors and blades recently. I know they were just a vendor, but I got 3 Soligors in a row as parts of bundles with non responsive apertures. _________________ ________________________________________________________
I buy lots of lenses and sometimes I even use them... |
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Gardener
Joined: 22 Sep 2013 Posts: 950 Location: USA
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Posted: Fri Sep 26, 2014 4:15 pm Post subject: |
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Gardener wrote:
I had to abandon my cup of coffee and go find my copy of it. It supposed to open fully of course, but the movement is rather tight, and I can believe that a solidified drop oil, or some debris (mine accumulated quite a bit on the surface right above the aperture) would cause an obstruction. Re: taking it apart - I'd try to loosen the setscrews on te focus ring and go from there. |
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Fri Sep 26, 2014 11:30 pm Post subject: |
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Layer-cake wrote:
so it turns out it was some grub screws under the focus ring that had loosened that allowed the aperture mechanism to shift. |
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Lloydy
Joined: 02 Sep 2009 Posts: 7796 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Fri Sep 26, 2014 11:59 pm Post subject: |
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Lloydy wrote:
Layer-cake wrote: |
so it turns out it was some grub screws under the focus ring that had loosened that allowed the aperture mechanism to shift. |
Interesting..............the ring with slots that move the blades I'm guessing? _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
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http://www.ipernity.com/home/294337 |
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Sat Sep 27, 2014 6:06 am Post subject: |
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Layer-cake wrote:
I thought at first removing the back end would give me access to the blades itself but once I had removed the aperture rings and the mount piece all o could do was turn the whole section with the rear lens element and aperture system, I was a bit stumped because there would be no way I could set it and it would just turn and turn.
so off came the focus ring which didn't help at first as you have to extend the barrel out a bit for the grub screws that hold the aperture system in place visible. gardeners comment convinced to remove it and luckily there they were.
in the pic I put the mount piece back on but you can see the grub through the round hole, this would have been an easy fix if I had known but I've dismantled quite a bit of the lens at this point, need to figure out how stuff gets aligned. |
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Sat Sep 27, 2014 6:21 am Post subject: |
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Layer-cake wrote:
I though at first that there wouldn't be any spring mechanism that helped control the aperture, it just wouldn't make sense in a preset lens.
one thing i have to say about this lens sets previous owner is he loved his lenses;) here's a pic of the 85mm its near perfect!!
I want to keep it rather badly for when I get a good APC camera but on MFT its not a focal length I would use, so its going to be sold. in some ways I always feel bad just buying these sets to break apart and resell especially when I can see the person really appreciated what they had but what I decided to do as a tribute is have the 3 rolls of exposed film that came with the set developed:) they are old, like 1978 old but also seem to have been in their canisters since then, so we shall see what they contain!! |
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