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trev
Joined: 30 Jun 2010
Posts: 580
Location: North Wales - UK
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 Posted: Tue Apr 03, 2012 10:53 am Post subject: P....d off |
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trev wrote:
Talk about miffed, one of my favourtie lenses is misbehaving damn and blast it!! Its my Canon FL 35 f2.5 and just now placing it on my Samsung nx it will not focus past 3.5 metres, from minimum focusing distance to the aforesaid metre point all is okay but then it just stops....any ideas?????
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LucisPictor
Joined: 26 Feb 2007
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| Posted: Tue Apr 03, 2012 11:54 am Post subject: |
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LucisPictor wrote:
Faulty adapter?
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Tue Apr 03, 2012 1:29 pm Post subject: |
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iangreenhalgh1 wrote:
I had the same lens (and it was one of my faves too, really sharp at all apertures).
Not sure why, my guess it some sh*t has entered the helicoid somehow.
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Last edited by iangreenhalgh1 on Wed Apr 04, 2012 6:27 pm; edited 1 time in total |
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Tue Apr 03, 2012 1:36 pm Post subject: |
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Orio wrote:
How does your lens work on a FL camera? This is the first test to make.
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trev
Joined: 30 Jun 2010
Posts: 580
Location: North Wales - UK
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| Posted: Tue Apr 03, 2012 3:23 pm Post subject: |
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trev wrote:
Tried her on one of my FD cameras and no, no change there either
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iangreenhalgh1
Joined: 18 Mar 2011
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| Posted: Tue Apr 03, 2012 5:13 pm Post subject: |
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iangreenhalgh1 wrote:
Sh*t in the helicoid. Or solidified lubricant. Perhaps lighter fuel can be squirted in to free it up? No risk of it getting to the optics as in this lens the optics are in one block separate from the helicoid.
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trev
Joined: 30 Jun 2010
Posts: 580
Location: North Wales - UK
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| Posted: Tue Apr 03, 2012 6:06 pm Post subject: |
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trev wrote:
sounds a good idea but where do I squirt the light fuel into? Do I have to do some dismanteling?
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iangreenhalgh1
Joined: 18 Mar 2011
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| Posted: Tue Apr 03, 2012 6:30 pm Post subject: |
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iangreenhalgh1 wrote:
Not sure, I think you can squirt it in the front, there is a gap where the helicoid part ends just below the silver aperture ring, if you sat it upright with the mount at the bottom, gravity should make it drain down through the helicoid.
Not tried this myself but people have had success with lighter fluid on old Jena lenses with solidified lubricant like the Tessar and Pancolar.
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mo
Joined: 27 Aug 2009
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Location: Australia
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| Posted: Tue Apr 03, 2012 10:16 pm Post subject: |
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mo wrote:
If you value your lens, what about sending it for a CLA? I know this may not be a cheap option but it will preserve your "favorite" lens.. 
I just had a thought you may want us to move this to the repair section and you may get a few more ideas on what to do,and put in the title that you need help to repair a lens.
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trev
Joined: 30 Jun 2010
Posts: 580
Location: North Wales - UK
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| Posted: Wed Apr 04, 2012 3:14 pm Post subject: |
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trev wrote:
Ha....the lighter fluid worked.......focus operation of the lens now VERY smooth. I'll leave it overnight just to make sure though
Thanks for the tip
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iangreenhalgh1
Joined: 18 Mar 2011
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| Posted: Wed Apr 04, 2012 6:27 pm Post subject: |
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iangreenhalgh1 wrote:
Good to hear trev!
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