Before i read your forum i already tried to disassemble my lens(same lens).
But only until the the focus ring the same as your procedure. I stopped and put them back because i dont know if i can remove the front element glass. I want to open it because i can see a 1 small dust at the center of front glass and it really make me feel sad. Do you think that if i remove the inner part(same you last post picture), i can now remove the small dust inside the front element? Thank you.
I got stuck at this screw.
The screw won't budge. It had some gunk on it (glue?). I chipped it all off and even used a q-tip with acetone to gently get all the visible blue gunk off. It still won't budge. Any thoughts?
Thank you for this guide! I made a video-guide out of it:
---->http://www.youtube.com/watch?v=ED0DQpVnTuM&feature=youtu.be<----
However, my problem wasn't fixed by this. My problem is that the lens will focus just fine from infinity to close, but won't focus a millimeter from close to infinity.
Do I need a new motor?
Confirm the problem by testing at manual focus.
If the same problem, then barrel is not in perfect shape yet