You saved my lens! I really appreciate how clear and precise your visual instructions were. Who knew it was just a loose screw causing me such a headache. Easy, straight-forward. Thank you!
this tutorial save me.. i've dissemble my lens with the help of this video, and i found 2 screws loosened inside so i tighten it... now work perfect again
Mine had the same problem. I could hear something rattling around, and after following this video I found the same screw loose inside (and its buddy still in its threads, but partially unscrewed). I put the runaway screw back, tightened both, and aligned the zoom brush. But I had to remove two screws (around 8:30 in the video) to get the focus mechanism out, exactly where the narrator said he thought there should be a couple of screws at 20:25. Without them, I suspect his lens is going to continue to give him trouble. One other suggestion: I found it worked better to have the AF/MF switch in the AF position when reassembling, it fit back in place more easily than if it was in MF. Finally, note that this lens has a DC motor focus mechanism, and with the switch in AF the focus ring is locked to the motor -- unlike lenses with USM or STM focus motors that typically allow the focus ring to turn even in AF. I wonder if his original problem was that he did not realize this and thought it was jammed in the AF position? Canon also offers what look like two higher end versions this same lens, but with STM or USM focus -- for a lot more money.
Lovely LOGICAL approach to the job....I often spoke your words slightly before you as we both did the job. Excellent and gives the average person enough confidence to tackle this and other jobs. Beautifully done. Thanks from Canada North My guess is someone forced the focus ring when it was in AF mode and stripped/pulled the screw out of it's hole where it later jammed and prevented toe ring turning.
thanks Wayne, I would also guess that someone forced the focus ring and in that way, when it was in AF mode and the plastic gears came out of place. Cheers from Denmark
A much easier way to remove that plastic ring at 3:19 is to take off the metal ring first. Then push the retaining pins from the inside using a small tool. It pops out easily and will not cause damage to the plastic ring.
A very helpful and instructive video. I had the exact same problem with 2 loose screws in the lens which were annoying me for ages. Now FIXED!!! Thank you soooo much.
Great instructional video! I watched it because I have the same make of lens and was curious what is inside it. Now I hopefully will know how to fix it if ever it breaks.
I have same lens with same ratling noise inside. Thanks for this repair video, it will be good for me to fix my lens. Focus works in it, somewhat, but is noisy AF when filming. I was wondering is there somekind of lubricant you can but inside of zoom?
muchas gracias por compartir tenia el mismo problema con ese lente y gracias a tu explicación que fue muy detallada lo pude volver a usar, muchas gracias, saludos desde Cadereyta Jiménez, Nuevo León, México
First of all thanks for the videos. Furthermore I have a question. Have you ever fixed a Sigma AF APO 400/5,6 (1988-1995) lens? Or dou you have lens design drawing or anything else for that? Thank you in advance. Tamas
Hey great video got my canon 18-135 stm to work but it wont auto focus without bouncing back in forth past the 100mm mark any ideas for me to check ? Thanks for all your help
I'm sure this is coming way too late, but mine had bent focus ring contact brush. I corrected it and now my bouncy focus is gone. Also thanks for this video; I can keep on shooting with this lens again
You saved my lens! I really appreciate how clear and precise your visual instructions were. Who knew it was just a loose screw causing me such a headache. Easy, straight-forward. Thank you!
this tutorial save me.. i've dissemble my lens with the help of this video, and i found 2 screws loosened inside so i tighten it... now work perfect again
Mine had the same problem. I could hear something rattling around, and after following this video I found the same screw loose inside (and its buddy still in its threads, but partially unscrewed). I put the runaway screw back, tightened both, and aligned the zoom brush. But I had to remove two screws (around 8:30 in the video) to get the focus mechanism out, exactly where the narrator said he thought there should be a couple of screws at 20:25. Without them, I suspect his lens is going to continue to give him trouble. One other suggestion: I found it worked better to have the AF/MF switch in the AF position when reassembling, it fit back in place more easily than if it was in MF. Finally, note that this lens has a DC motor focus mechanism, and with the switch in AF the focus ring is locked to the motor -- unlike lenses with USM or STM focus motors that typically allow the focus ring to turn even in AF. I wonder if his original problem was that he did not realize this and thought it was jammed in the AF position? Canon also offers what look like two higher end versions this same lens, but with STM or USM focus -- for a lot more money.
Thank you so much from Brazil, my friend. I had this problem for years and today I am able to solve it thanks to you.
Getting the focus ring back on is absolute hell
I had exactly the same issue with my 18-135 and this video gave me 95 % of the answers to get inside and repaired. Quite easy really
Lovely LOGICAL approach to the job....I often spoke your words slightly before you as we both did the job.
Excellent and gives the average person enough confidence to tackle this and other jobs.
Beautifully done.
Thanks from Canada North
My guess is someone forced the focus ring when it was in AF mode and stripped/pulled the screw out of it's hole where it later jammed and prevented toe ring turning.
thanks Wayne, I would also guess that someone forced the focus ring and in that way, when it was in AF mode and the plastic gears came out of place. Cheers from Denmark
A much easier way to remove that plastic ring at 3:19 is to take off the metal ring first. Then push the retaining pins from the inside using a small tool. It pops out easily and will not cause damage to the plastic ring.
yesterday solved the problem with my lens thanks to you Mike, great video.
It's really relaxing to watch your videos!
A very helpful and instructive video. I had the exact same problem with 2 loose screws in the lens which were annoying me for ages.
Now FIXED!!! Thank you soooo much.
Great Keong, I'm happy it works for you :-)
Great instructional video! I watched it because I have the same make of lens and was curious what is inside it. Now I hopefully will know how to fix it if ever it breaks.
... and thanks for posting such a detailed video. It gave me the confidence to take my lens apart.
Hi mikeno62! You've missed the two screws which securing the focus motor in place at the reassembly. Without them the focus could loosen again.
Fantastic! I was able to fix my lens and it works great! Thank you!
There were so many mistakes made during the renovation. Yes, they may be small, but they can lead to big problems.
Thanks Mate! Had the exact same Problem, your video helped a lot! Now the Lens works perfectly.
Thank you so mach. I fixed my same lense by following you . Very helpful
I have same lens with same ratling noise inside. Thanks for this repair video, it will be good for me to fix my lens. Focus works in it, somewhat, but is noisy AF when filming. I was wondering is there somekind of lubricant you can but inside of zoom?
I got a million thanks for you, great video. It save my lens that got the same problem. Thank you very much. God bless you.
Amazing help, had the exact same problem
muchas gracias por compartir tenia el mismo problema con ese lente y gracias a tu explicación que fue muy detallada lo pude volver a usar, muchas gracias, saludos desde Cadereyta Jiménez, Nuevo León, México
Thank you so much. My lens back to use again after watch this video.
Thanks, I'm happy to know that :-)
Thank you! Helped me a lot.
Very well done.
First of all thanks for the videos.
Furthermore I have a question. Have you ever fixed a Sigma AF APO 400/5,6 (1988-1995) lens? Or dou you have lens design drawing or anything else for that?
Thank you in advance.
Tamas
Very good job ! return to life...
I will try to fix mine as well
Very Very Very Thanks Sir
its really helpful to me
Again Thanks
I dropped my camera with similar lens in Ocean water and now its gone, Do you think I can repair lens? Where did you buy parts? Thanks!
Hey great video got my canon 18-135 stm to work but it wont auto focus without bouncing back in forth past the 100mm mark any ideas for me to check ? Thanks for all your help
I'm sure this is coming way too late, but mine had bent focus ring contact brush. I corrected it and now my bouncy focus is gone. Also thanks for this video; I can keep on shooting with this lens again
Kenneth I disassembled my Leitz Canada Tele-Elmarit 90 2.8 thin version to clean But cannot be returned Please help me. Thank you
A question, just purchased canon 2000d (18-55mm), can it be used in camera 2000d. Thank you
should be yes, since both canon 2000d and EF-s 18-135 are efs mount
THank you for your message.
Great video indeed
U r great sir thanx
Great
Still Way over priced here. € 480,- for a tuned up kit lens???
Wow scratch the shit out of it 🥺
Horrible with a lens
Obviously it was dropped .