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Tamron 90mm 2.5 (52B) stuck focus ring :\
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PostPosted: Sun Apr 29, 2012 11:27 am    Post subject: Tamron 90mm 2.5 (52B) stuck focus ring :\ Reply with quote
well i think the heli was put outside it genuine position, thus not letting it turn..
please watch this video where i try to let you see what the issue... after i disassembled the lens
http://www.youtube.com/watch?v=7Z8FwBvonnI after 30 secs the video gets stuck. crappy webcam. but its enough to see the whole problem.
#1


another thing is that i cant remove aperture ring! there is a ball inside there, and that ball doesnt let me: 1.remove the aperture ring 2. put it back to its original positing!
Mad Evil or Very Mad Mad


PostPosted: Mon Apr 30, 2012 9:08 am    Post subject: Reply with quote
i did it..
i used alot of rust remover (WD) then i let it sit for a few houres and added more WD then with alot of force the heli started moving untill i managed to seperate everything apart. then cleaned all the old lubricant with alot of alcohol then with a brush,and then i managed to put back the 3 helicoids in position together, and the lens works! and its a monster!! i will post some images now...


PostPosted: Sat Jul 25, 2015 10:30 am    Post subject: Reply with quote
haha, funny video Very Happy

Well I have a stuck focus on a lens too so I just look after good tips...
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