good morning, excellent video your patience is infinite thank you for bequeathing your knowledge of such a worthy and forgotten profession in my country the micro-mechanics here are extremely scarce. Could you illustrate me if these points, guides are the same in all lenses thank you, inspired me
If you hold the side of the lens upwards it will be very easy to mount that very tiny three screws at the sides. I know because I have inspired from your videos and cleaned mine. :)
Ken, I have a question. Would it be possible to list the tools you use for this particular procedure in writing? I can't make out some of the tools you say in the video. I need to perform a procedure like this in my own Canon FL lens and I'm thinking to start doing it your way rather than sending it to the repair shop.
Hi, I have the same lens but mine has one of the aperture blades loose. Do you have a video showing how to disassemble the aperture blades on this lens. Thanks, your videos are extremely helpful!
Thank's Dennis, I have just made a new film about the aperture system in this lens, here you can also find all the info about, how to work with aperture blades. th-cam.com/users/edit?o=U&video_id=AmASWPJ1AzA
mikeno62 Hi Kenneth, thank you. I watched your video and was very clear and well explained. I have disassembled the lens per your instructions and went very smoothly. Fortunately I have the proper tools JIS screw drivers and spanners. My aperture issues was due to a stud on one aperture blade had come off. I found the stud so I plan to use a tiny bit of epoxy on the stud. I think it will work hopefully the glue will be strong enough to hold. If not I will need to find a donor to repair the lens. Your videos helped me save my vintage gear which I’m extremely grateful! Please keep up the great work! 😊👍
I've just bought this lense on ebay but it appears to be stuck in auto, so I can't check the focus blades in manual mode. The release catch is also very lose (shaky) so I'm thinking that the seller has messed around with it and not reassembled it properly. I'll see if I can find someone who can fix it cheaply as I don't want to risk damaging it any further.
I would guess that there are oil on the aperture blades, but I have made a video about that problem, here you can see how to fix it: th-cam.com/video/AmASWPJ1AzA/w-d-xo.html
Hi Mike another excellent video , Than you very much!!! , do you make same about SuperTakumar 200mm F4, I have a new old lens whit sticky aperture blade , and maybe you teach me too open thank you very much again for your videos!
Sorry but no, I use most of the time the purple Loctite 222, and sometimes the blue Loctite 243. I have not try the Loctite 241, (I actually didn't know there was a Loctite threadlock with that number). So I have look on Locktite's website, and found out that I would not use it on tiny screws, because it's middle hard thread lock.
Hi, 241 is mentioned in the D700 service manual. Which one is a good all purpose threadlock ? The purple one ? I would like to use it in a Tamron lens. Some screw threads in Nikon bodies and notebooks have a blue residue, I have no trouble to undo these screws with the blue stuff.
Thank's for the info Dorf, In my repair experience during many lenses and cameras, I would say that the purple 222 are very good for the tiny screws but also softer screws just like 1.2mm to 1.6mm. On the other hand, the blue 243 is good for the bigger screws just like 2mm and above. I think there is not really a "all purpose" threadlocker, also because it depend on the material, screw and the material you screw into. Steele and Aluminium, Steele and Brass, Brass and Aluminium, Brass and Iron, etc. etc.. Hope it makes sense. Cheers Kenneth
You have the patience of Job! well done!
Thank's Ramos :-)
Great work ,thank you ,i repair my lens with your video .All the best for you . 😊
Excellent video! Thank you very very much for sharing this knowledge!
good morning, excellent video your patience is infinite thank you for bequeathing your knowledge of such a worthy and forgotten profession in my country the micro-mechanics here are extremely scarce.
Could you illustrate me if these points, guides are the same in all lenses
thank you, inspired me
帮了大忙，十分感谢
how to disassemble the focus lens canon fd 50mm f1.4. I hope you can make a video tutorial
If you hold the side of the lens upwards it will be very easy to mount that very tiny three screws at the sides. I know because I have inspired from your videos and cleaned mine. :)
Thank's for the good tips, Can :-) hope your lens cleaning went fine.
mikeno62 I was not able to reach the front element since mine is fd. Later I will give another try.
Great stuff. 👍🏻 Thanks for showing this repair.
Ken, I have a question. Would it be possible to list the tools you use for this particular procedure in writing? I can't make out some of the tools you say in the video. I need to perform a procedure like this in my own Canon FL lens and I'm thinking to start doing it your way rather than sending it to the repair shop.
You recon it also works for non-threaded contact surfaces? It seems to be less sticky than the grease I’ve seen on newer lenses.
Hi, I have the same lens but mine has one of the aperture blades loose. Do you have a video showing how to disassemble the aperture blades on this lens. Thanks, your videos are extremely helpful!
Thank's Dennis, I have just made a new film about the aperture system in this lens, here you can also find all the info about, how to work with aperture blades. th-cam.com/users/edit?o=U&video_id=AmASWPJ1AzA
mikeno62 Hi Kenneth, thank you. I watched your video and was very clear and well explained. I have disassembled the lens per your instructions and went very smoothly. Fortunately I have the proper tools JIS screw drivers and spanners. My aperture issues was due to a stud on one aperture blade had come off. I found the stud so I plan to use a tiny bit of epoxy on the stud. I think it will work hopefully the glue will be strong enough to hold. If not I will need to find a donor to repair the lens. Your videos helped me save my vintage gear which I’m extremely grateful! Please keep up the great work! 😊👍
I've just bought this lense on ebay but it appears to be stuck in auto, so I can't check the focus blades in manual mode. The release catch is also very lose (shaky) so I'm thinking that the seller has messed around with it and not reassembled it properly. I'll see if I can find someone who can fix it cheaply as I don't want to risk damaging it any further.
Hello I have a problem I can’t seem to take it from auto to manual the iron thingy I can’t push it in 😭
Excellent. Thanks!
My aperture blades aren't working. When I select different aperture, the blades doesn't open and close. Any suggestions?
I would guess that there are oil on the aperture blades, but I have made a video about that problem, here you can see how to fix it:
th-cam.com/video/AmASWPJ1AzA/w-d-xo.html
Hi Mike another excellent video , Than you very much!!! , do you make same about SuperTakumar 200mm F4, I have a new old lens whit sticky aperture blade , and maybe you teach me too open thank you very much again for your videos!
Thank's Guillermo, I do not yet have a video about Super Takumar 200mm F4.
Cheers
Kenneth
Hello,
did you recommend Loctite 241 in one of your videos ?
Sorry but no, I use most of the time the purple Loctite 222, and sometimes the blue Loctite 243.
I have not try the Loctite 241, (I actually didn't know there was a Loctite threadlock with that number). So I have look on Locktite's website, and found out that I would not use it on tiny screws, because it's middle hard thread lock.
Hi, 241 is mentioned in the D700 service manual. Which one is a good all purpose threadlock ? The purple one ? I would like to use it in a Tamron lens. Some screw threads in Nikon bodies and notebooks have a blue residue, I have no trouble to undo these screws with the blue stuff.
Thank's for the info Dorf, In my repair experience during many lenses and cameras, I would say that the purple 222 are very good for the tiny screws but also softer screws just like 1.2mm to 1.6mm. On the other hand, the blue 243 is good for the bigger screws just like 2mm and above.
I think there is not really a "all purpose" threadlocker, also because it depend on the material, screw and the material you screw into. Steele and Aluminium, Steele and Brass, Brass and Aluminium, Brass and Iron, etc. etc..
Hope it makes sense.
Cheers
Kenneth
Do you know if this will be similar on the FL 50mm f/1.2?
Well, it could be, but I'm not 100% sure because I have not try that lens.
@@mikeno62 Thank you for your reply. I see I mentioned the wrong lens when typing on my phone. I meant the Canon FL 58mm f/1.2
Thanks a lot! Helped in cleaning mine ;)
I may have missed it, but did he mention that this lens is really quite radioactive?...and potentially dangerous to disassemble and work on.