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cyrano
Joined: 15 Feb 2013 Posts: 855 Location: UK
Expire: 2016-12-30
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Posted: Wed Mar 26, 2014 6:39 pm Post subject: Helios 44M-4 issue. |
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cyrano wrote:
I've got a VGC lens , as new really however the focus ring is totally loose. I can turn it freely but it makes no contact with the helicoid (?) and the lens barrel doesn't extend at all. Is this a simple fix and if so, is anyone aware of a means to repair it? I don't wish to start taking it to pieces and don't have the tools anyway. I can't see any grub screws externally so am unsure of my next move aside from asking here.
Serial # is :85173618
_________________ A whole bunch of stuff. |
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Lloydy
Joined: 02 Sep 2009 Posts: 7776 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Wed Mar 26, 2014 9:48 pm Post subject: |
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Lloydy wrote:
I suspect the three grub screws around the focusing barrel - between the distance numbers - are loose. Gently tighten them, turn the barrel clockwise looking at the front of the lens, till it hits the stop which is infinity. Then loosen the screws and set the barrel so the infinity mark lines up and re tighten the screws. _________________ 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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cyrano
Joined: 15 Feb 2013 Posts: 855 Location: UK
Expire: 2016-12-30
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Posted: Thu Mar 27, 2014 8:39 am Post subject: |
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cyrano wrote:
I'm afraid not Lloydy, there's no visible grub screws anywhere. I had suspected something like this as the focusing was starting to slip a little bit before eventually going completely slack but it would appear to be an internal fix which I'm a tad reluctant to try as the lens is immaculate otherwise. _________________ A whole bunch of stuff. |
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RSalles
Joined: 12 Aug 2012 Posts: 1373 Location: Brazil - RS / South
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Posted: Thu Mar 27, 2014 2:24 pm Post subject: |
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RSalles wrote:
Lloydy wrote: |
I suspect the three grub screws around the focusing barrel - between the distance numbers - are loose. Gently tighten them, turn the barrel clockwise looking at the front of the lens, till it hits the stop which is infinity. Then loosen the screws and set the barrel so the infinity mark lines up and re tighten the screws. |
X2!
The 3 screws are the small size made I can imagine, it can even be covered by dust, etc, so please look again. Otherwise, post a pic of the lens itself.
Usually, if the helicoid thread becomes seriously loose the movement will stick in place and it's a hell sometimes to get them apart: one part of the helicoid will pass over it's counterpart blocking the movement. If both parts of the helicoid disengaged from each other, if I'm not wrong, the lens will separate in two parts, not just become loose.
Cheers,
Renato |
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Thu Mar 27, 2014 2:31 pm Post subject: |
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Layer-cake wrote:
can you remove the plastic grip ring? they could be under there!! |
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cyrano
Joined: 15 Feb 2013 Posts: 855 Location: UK
Expire: 2016-12-30
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Posted: Thu Mar 27, 2014 5:35 pm Post subject: |
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cyrano wrote:
Alas the focus ring is made of alloy and doesn't come off.
apologies for over sizing but it helps. I will delete later.
Deleted. _________________ A whole bunch of stuff.
Last edited by cyrano on Fri Mar 28, 2014 3:54 am; edited 1 time in total |
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Thu Mar 27, 2014 5:48 pm Post subject: |
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Layer-cake wrote:
I did actually do a tear down on one of these over a year ago but for the life of me I cant remember the inner construction of it!! luckily there are many people who have tried to fix these so quite a few walk throughs online:
Heres a google search for disassembly, im sure it will probably be a retainer ring inside that the screws arent holding into place anymore:
https://www.google.ie/search?q=helios+44m+4+disassembly&ie=utf-8&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&gws_rd=cr&ei=dWM0U9TvNcOu7Abn5YDACg |
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Lloydy
Joined: 02 Sep 2009 Posts: 7776 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Thu Mar 27, 2014 9:36 pm Post subject: |
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Lloydy wrote:
I have no idea about the later version, I was looking at my earlier ones. Could it be the same as Takumars - under the name ring there's two sets of three screws, maybe the set locking the barrel is loose?
Does the focus barrel rotate all the way round without stopping, or does it just rotate for a certain amount? _________________ 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.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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SXR_Mark
Joined: 12 Jun 2010 Posts: 506 Location: England
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Posted: Thu Mar 27, 2014 10:31 pm Post subject: |
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SXR_Mark wrote:
I think you have to remove (unscrew) the name ring then remove (three) screws that hold the filter ring on. Underneath the filter ring, between the focus ring and the inner helicoid, there are three screws that clamp the focus ring to the outer helicoid. I think that's how it works.
Mark _________________ Olympus OM-D E-M1 for everything |
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cyrano
Joined: 15 Feb 2013 Posts: 855 Location: UK
Expire: 2016-12-30
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Posted: Fri Mar 28, 2014 3:52 am Post subject: |
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cyrano wrote:
The barrel only rotates to the near and far limit of the focus travel, I have bought this wrench to try :
http://www.ebay.co.uk/itm/200978102480?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 _________________ A whole bunch of stuff. |
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cyrano
Joined: 15 Feb 2013 Posts: 855 Location: UK
Expire: 2016-12-30
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Posted: Tue Apr 01, 2014 12:05 pm Post subject: |
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cyrano wrote:
Well, ordered the tool, took some bits off and still no sign of access to the focusing parts so I am now in possession of a non functioning but otherwise immaculate Helios 44M-4 if anyone is needing spares. _________________ A whole bunch of stuff. |
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cyrano
Joined: 15 Feb 2013 Posts: 855 Location: UK
Expire: 2016-12-30
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Posted: Thu Apr 03, 2014 6:18 am Post subject: |
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cyrano wrote:
Ignore the above, I went in via the back of the lens and after 4 hours of frustration and dropping micro screws have now got a functional focus action. Now I can use the lens but it will need to be re-lubed and the aperture ring is now click less and loose but there you go. I'm pleased with my first attempt at a lens disassemble.
What a relief. _________________ A whole bunch of stuff. |
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