Thank you for this, same as others - oily blades. Was getting mentally reconciled to getting at the diaphragm from the mount side, which would have been a major job, with lots of recessed screws set with loctite. Front side disassembly was super easy.
got this lens 40 years ago and it never closed down (useless). I watched your video and found the aperture blades were soaked in oil. Gave the assembly a 99% alcohol bath and works like a charm now. thanks.
If you take a small screwdriver, toothpick, plastic stick, ect...you can depress the release under the breechlock ring and then move the larger lever to the locked position the aperture lever and ring will then allow you to check aperture operation.
Thanks for this Matt. Really helped me out. I just bought this exact lens (was sold for parts). Turns out it was just a gooey aperture. All better now thanks to your insights and instruction. Cheers.
Nice video.. I’m wondering if you know how to put back in place the aperture mechanism of the fd 70-210 f4? ( instructions like you did here that makes things a lot easier)
Hi Matt, your video on lens are very impressive i will say thumbs up. I watched this video and its very impressing so i decided to take out my old Canon FD 35-70mm 3.5-4.5 Zoom lens to clean it up. I disassembled it and after cleaning the lens i cant assemble it back up. I need you help on this please.
Dear Matt. Thanks for the great video!! If possible, could you please help me out with assembling the silver ring at the end? It just doesn't seem to align well..
Hi Matt - All of your videos are quite informative and useful. I would appreciate if you could find some time to make a tutorial on de-clicking a Canon FD SC 135mm f3.5. As I do a lot of videos I would like to have a de-clicked aperture. Hoping that I can see one coming soon.
Matt, Thank you for your reply. I did try this. After I put back everything, and no matter what aperture I set it to (3.5, 5.6, 8..) I find that it gradually moves up to 22 as though there seems to be some kind of spring tension. I am unable to figure out could it be the spring on the aperture?
Hey Matt... Great videos...Im having a problem getting into a Canon FD 17mm 2.8... Do you have any experience with this lens?? I have some black specks inside somewhere that are visible when you look into it and show up in photos... Tried taking the front cover off with rubber ring and pvc pipe like you do in this video but the thing won't budge... I even ran alcohol on q-tip around the inside treads but still won't turn... Don't want to get crazy with it as to not break it... Any ideas how i can get into this thing??
thank you so much, your video are good and informative as always. is it possible to make a video about canon FD 50mm 1.8 I got a 50mm 1.8, can not to fix it thanks
Is it necessary to take off the front llens element to take off the breech at the back? I have converted a bunch of bayonet FDs and it was fairly simple. But my first 135mm breech lock and it wont lift out of the back. Something is attached somewhere. I have seen lots of other breech removals and they just lift right out. But maybe the 135 is different?
@@jiwonbaeqdp I ended up taking it in to a local place and having it removed professionally. Since then I have done two more breeches with absolutely no problem. But that 135 is nothing but trouble. Good luck!
@@dougfranckwolf Whew! You were right. Nothing but trouble. I did manage to get it done though- I'll leave this here for future people who might need help. With the 2.5 version, the fd mount didn't come off because there was a tab that connected the mount to the aperture control in the lens. Trick was unscrewing the rear lens element first using a lens spanner before trying to remove the FD mount, unlike this video. Afterwards, there was enough clearance for the tab to come out.
Hey Matt i have an vivitar 135mm 2.8 auto telephoto lens , ive been watching your videos and tryied to disassembly dis old lense and now im stuck on asamble it back. It has an ring that it screws and the bootom mount doesent sit tight there and it falls off.
Hey there! I am attempting to clean a haze out of a very odd Cosina Canon FD mount 100-500 mm f 5.6-8 zoom lens. It is relatively old, and I was wondering if you could give me any advice on it. The haze is on the inside of the second element (or what appears to be the second element). Let me know if you, or anyone in the comments, can help. Thank you.
Hi, This video helped me reassemble a Canon FD 50MM 1:1.8 SC lens. I took it apart to better clean the rear element and oops! Could not get it together. Only difference is this lens has the two "click" stop ball bearings living under the main assembly. Once I figured out where the tiny springs and ball bearings went assembly was easy. What are you using to mimic the camera mount? An extension tube or a teleconveter?
Glad things eventually worked out. In this video, I'm using a cheap e-mount to fd lens adapter to show how the mount works. You can simulate this all manually by pressing the correct levers on the mount as well.
Matt Bierner Thanks I'll pick up an M5 extension ring on Ebay for 6 bucks and use that. It's easier than fiddling with those two stops on the lens. By the way my 35-70mm is assembled and now I just have to fine tune the infinity focus.
No. Even similar lenses by the same manufacturer differ significantly in their internal construction. Many of the same techniques certainly apply, but this video will not help you with that lens.
Hi, is isopropyl alcohol absolutely necessary? My 100mm FD aperture blades have oil...I haven't opened it just yet. I also own a 135mm, but the f2.8 version. Do you recommend opening/cleaning all fd lens at least once, or is it best to leave them alone until you suspect something's wrong?
Leave the lens alone until it stops working. Especially for small problems, such as blades that are oily looking but still operate fine, opening up the lens can introduce new problems and present unexpected challenges. For cleaning the blades I recommend using some sort of cleaning solution. Isopropyl alcohol is my choice because it dissolves many oils and generally does not leave behind much residue. Similar solvents should also work. But be careful using these solutions on other parts of the lens. Isopropyl alcohol is usually pretty safe, but some solutions may dissolve paint or damage lens coatings.
Hallo from England -- just found this video -- my question is : I have a Canon 35mm f3.5 SC Breechlock lens with some cleaning needed inside the lens -- can I get off the 'name plate' and undo it to reveal the lens parts same as on your 135mm SC lens ? At the moment cannot shift the name plate with fingers ---
Some Canon lenses had snap in/tabbed identification plates, some had screw on. You might have the former. If you do, you need to carefully pop the plate off.
Ugh!!!! Trying to clean the fungus out of a FD 200mm F4 prime lens. I was able to get the first 2 screws out but stripped third. Any ideas to get it out? Drilling it was my only thought.
So to declick a bayonet mount fd lens like this, would I just not add the ball bearings back in? I have a ssc 100mm 2.8 that I'm planning on declicking
I can't say 100%, but for most lenses, yes it is that simple. Some lenses do not use a ball bearing for the clicking, but they usually will have a pin or something else you can remove in that case.
how do you know how a lens disassembles? I have canon fd 135mm f2,8, and I need to remove only front element. That ring (with name on) it just simply won't budge. And it doesn't seem to have a lot of space behind it for screws.
Thank you for this, same as others - oily blades. Was getting mentally reconciled to getting at the diaphragm from the mount side, which would have been a major job, with lots of recessed screws set with loctite. Front side disassembly was super easy.
got this lens 40 years ago and it never closed down (useless). I watched your video and found the aperture blades were soaked in oil. Gave the assembly a 99% alcohol bath and works like a charm now. thanks.
Just cleaned my 70-150mm Canon FD lens! Couldn't work out the final part, used something rubber like you said to free the internal lens! Thank you!!!
If you take a small screwdriver, toothpick, plastic stick, ect...you can depress the release under the breechlock ring and then move the larger lever to the locked position the aperture lever and ring will then allow you to check aperture operation.
Thanks for this Matt. Really helped me out. I just bought this exact lens (was sold for parts). Turns out it was just a gooey aperture. All better now thanks to your insights and instruction. Cheers.
Great video, very clear - just fixed a sticky aperture only had to remove the front element, only took 10min - saved me hours . thanks
Thanks. Incredibly detailed and helpful Master class in lens noodling. Great camera angle and communication skills.
Thanks mate.
Good job.
Nice video.. I’m wondering if you know how to put back in place the aperture mechanism of the fd 70-210 f4? ( instructions like you did here that makes things a lot easier)
Hi Matt, your video on lens are very impressive i will say thumbs up. I watched this video and its very impressing so i decided to take out my old Canon FD 35-70mm 3.5-4.5 Zoom lens to clean it up. I disassembled it and after cleaning the lens i cant assemble it back up. I need you help on this please.
Dear Matt. Thanks for the great video!! If possible, could you please help me out with assembling the silver ring at the end? It just doesn't seem to align well..
Hi Matt -
All of your videos are quite informative and useful. I would appreciate if you could find some time to make a tutorial on de-clicking a Canon FD SC 135mm f3.5. As I do a lot of videos I would like to have a de-clicked aperture.
Hoping that I can see one coming soon.
Take a look at my reply to @sly9889 Declicking is usually as simple as taking off the aperture control ring and removing the ball bearing.
Matt, Thank you for your reply. I did try this. After I put back everything, and no matter what aperture I set it to (3.5, 5.6, 8..) I find that it gradually moves up to 22 as though there seems to be some kind of spring tension.
I am unable to figure out could it be the spring on the aperture?
Hey Matt... Great videos...Im having a problem getting into a Canon FD 17mm 2.8... Do you have any experience with this lens?? I have some black specks inside somewhere that are visible when you look into it and show up in photos... Tried taking the front cover off with rubber ring and pvc pipe like you do in this video but the thing won't budge... I even ran alcohol on q-tip around the inside treads but still won't turn... Don't want to get crazy with it as to not break it... Any ideas how i can get into this thing??
thank you so much,
your video are good and informative as always.
is it possible to make a video about canon FD 50mm 1.8
I got a 50mm 1.8, can not to fix it
thanks
Is it necessary to take off the front llens element to take off the breech at the back? I have converted a bunch of bayonet FDs and it was fairly simple. But my first 135mm breech lock and it wont lift out of the back. Something is attached somewhere. I have seen lots of other breech removals and they just lift right out. But maybe the 135 is different?
Having the same problem with the 135 2.5 breech. Did you ever figure it out?
@@jiwonbaeqdp I ended up taking it in to a local place and having it removed professionally. Since then I have done two more breeches with absolutely no problem. But that 135 is nothing but trouble. Good luck!
@@dougfranckwolf Whew! You were right. Nothing but trouble. I did manage to get it done though- I'll leave this here for future people who might need help. With the 2.5 version, the fd mount didn't come off because there was a tab that connected the mount to the aperture control in the lens. Trick was unscrewing the rear lens element first using a lens spanner before trying to remove the FD mount, unlike this video. Afterwards, there was enough clearance for the tab to come out.
Just a question, this lens can be disassembled in the same way then the Canon FD SC 135mm f2.8??
Hey Matt i have an vivitar 135mm 2.8 auto telephoto lens , ive been watching your videos and tryied to disassembly dis old lense and now im stuck on asamble it back. It has an ring that it screws and the bootom mount doesent sit tight there and it falls off.
Thank you for this fantastic video!!
Hey there Matt. I have the 135mm f2.5 fd and the focus ring "disengaged" from the focus gear? Any clue how to repair or if it can be repaired? Thanks!
thanks for the video, may I ask what size is the screwdriver?
Hey there! I am attempting to clean a haze out of a very odd Cosina Canon FD mount 100-500 mm f 5.6-8 zoom lens. It is relatively old, and I was wondering if you could give me any advice on it. The haze is on the inside of the second element (or what appears to be the second element). Let me know if you, or anyone in the comments, can help. Thank you.
Hi, This video helped me reassemble a Canon FD 50MM 1:1.8 SC lens. I took it apart to better clean the rear element and oops! Could not get it together. Only difference is this lens has the two "click" stop ball bearings living under the main assembly. Once I figured out where the tiny springs and ball bearings went assembly was easy. What are you using to mimic the camera mount? An extension tube or a teleconveter?
Glad things eventually worked out. In this video, I'm using a cheap e-mount to fd lens adapter to show how the mount works. You can simulate this all manually by pressing the correct levers on the mount as well.
Matt Bierner
Thanks I'll pick up an M5 extension ring on Ebay for 6 bucks and use that. It's easier than fiddling with those two stops on the lens. By the way my 35-70mm is assembled and now I just have to fine tune the infinity focus.
I have a nFD version. do you know how you get to the back of the front element? Mine has some fungus behind it.
I need help to reattach the two bayonet pieces (black and silver) together & mount to the FD 55 1.2 SSC
Hello Matt, i have a Canon New FD 85mm f1.8 lens. It won't focus to infinity in Canon A-1 film camera. How do i fix this ? Thank you.
Hi, I have one of these lenses and the focus ring slips. Is that simple to fix?
i have a canon FD zoom lens that gets stuck part way through the zoom and doesn't focus...
whats your thoughts
Hi. have a canon fd 50mm 1.4 s.s.c. it works of the camera but when a put it on my canon av-1 aperture wouldn't work
Hi Matt, do you have any recommended guides for Canon FD 28mm f2.8 SC disassembly? Or perhaps if you have done it yourself before..Thanks
Sorry, I don't have any experience with that lens but will be sure to post a video if I ever get a chance to repair one.
Hi Matt, I have the Carenar 135mm f2.8 FD mount and I wanted to know if this tutorial will also work for this lens? Thanks in advance.
No. Even similar lenses by the same manufacturer differ significantly in their internal construction. Many of the same techniques certainly apply, but this video will not help you with that lens.
Matt Bierner thank you for your reply.
Hi, is isopropyl alcohol absolutely necessary? My 100mm FD aperture blades have oil...I haven't opened it just yet. I also own a 135mm, but the f2.8 version. Do you recommend opening/cleaning all fd lens at least once, or is it best to leave them alone until you suspect something's wrong?
Leave the lens alone until it stops working. Especially for small problems, such as blades that are oily looking but still operate fine, opening up the lens can introduce new problems and present unexpected challenges.
For cleaning the blades I recommend using some sort of cleaning solution. Isopropyl alcohol is my choice because it dissolves many oils and generally does not leave behind much residue. Similar solvents should also work. But be careful using these solutions on other parts of the lens. Isopropyl alcohol is usually pretty safe, but some solutions may dissolve paint or damage lens coatings.
Hallo from England -- just found this video -- my question is : I have a Canon 35mm f3.5 SC Breechlock lens with some cleaning needed inside the lens -- can I get off the 'name plate' and undo it to reveal the lens parts same as on your 135mm SC lens ? At the moment cannot shift the name plate with fingers ---
Some Canon lenses had snap in/tabbed identification plates, some had screw on. You might have the former. If you do, you need to carefully pop the plate off.
Ugh!!!!
Trying to clean the fungus out of a FD 200mm F4 prime lens. I was able to get the first 2 screws out but stripped third. Any ideas to get it out? Drilling it was my only thought.
Also doesn't seem like a way in through the front. Just glass.
bought one for $15 at a pawn shop and I will definitely come back here if I have any issues!
So to declick a bayonet mount fd lens like this, would I just not add the ball bearings back in? I have a ssc 100mm 2.8 that I'm planning on declicking
I can't say 100%, but for most lenses, yes it is that simple. Some lenses do not use a ball bearing for the clicking, but they usually will have a pin or something else you can remove in that case.
+Matt Bierner Cool! Thanks for the quick reply!
how do you know how a lens disassembles? I have canon fd 135mm f2,8, and I need to remove only front element. That ring (with name on) it just simply won't budge. And it doesn't seem to have a lot of space behind it for screws.
yeah. I removed it, the construction of this lens is completely different than this one, so I'll have to improvise
Could you explain how you did that? Thanks in advance