This is a well-done video. You can save some time and still get rid of the oil by removing the diaphragm assembly (2:00) and submerging it complete in 91% isopropyl alcohol. Work the blades open and closed a few dozen times. Lift out the assembly and blow it dry with canned air - do this with the blades open, closed, and partially closed. Repeat the entire process. Let the unit air-dry fully for several minutes. The diaphragm blades should now be 100% clean and dry. I've done it this way several times with success.
@ValleyRC4 ай бұрын
Yes this works well. You get paranoid at first that it won't be fully dry but given enough time and caution it will fully dry out. If it's in a colder part of the year, you could also put the assembly on top of a radiator or heater if you have one running. I have dried them off, then to make fully sure, placed the mechanism inside a clear plastic bag and put back onto the top of a radiator to check for any condensation inside the plastic bag but it has always been fine with no traces of moisture left. Works for some other lenses too such as Carl Zeiss Jena 135mm MC
@Sniggiscameras3 ай бұрын
Yea thats right, maybe the more efficient way.
@sagauer Жыл бұрын
Thank you for making the video, I was able to fix a lens I got from goodwill. The blades were very oily and didn't come out at all. It was pretty easy to do, but the last blade was difficult and it took a few trials and I came up with quite a few new swear words during the process...It was much easier after I put a pad underneath the ring to keep it in place.
@Sniggiscameras7 ай бұрын
Nice! :)
@HavenlyKlozed3 жыл бұрын
Thank you so much for the video :) I've been able to access and clean the aperture blades thanks to you. It's a shame however that the "reassembly part" of the video be that accelerated, as it may be useful for the viewers. Great vid anyway !
@Sniggiscameras3 жыл бұрын
Thank you very much :)
@npginther2 ай бұрын
Thank you for this. Was able to fix a new to me lens.
@SuperZieman11 ай бұрын
Дякую. Корисне відео!
@athanasiospatsis77203 жыл бұрын
Thank you for the help! I was afraid to open completely the blades,so i dipped them in the liquid for a while. Fortunately it worked for the moment. If it stucks again in future,then i'll have to follow your instructions! :) Only problem is, that even though the blades function flawlessly out of the lens, when mounted, the aperture don't go past f/8 ... Not sure if i do something wrong or if its the lens fault, cause the lens was already stuck at f/1.4 when it arrived to me. Thanks again!
@Sniggiscameras3 жыл бұрын
No Problem :)
@Skux7203 жыл бұрын
Thank you for this! I fixed mine, the oil had gotten on the blades and made them sluggish.
@Sniggiscameras3 жыл бұрын
Thats great!
@georgiy2218 Жыл бұрын
Thank you much, this video helps me to repair my lens😄
@Sniggiscameras Жыл бұрын
No problem :)
@medaziz39294 жыл бұрын
Thank you
@Sniggiscameras4 жыл бұрын
No problem :)
@diegodiaz3804 ай бұрын
Great video!! But can i reach the aperture assembly on the 1.8 the same way?
@Sniggiscameras3 ай бұрын
Its pretty similar to the 1.4.
@coin7777 ай бұрын
doesnt it need some grease? Also what was the liquid you submerged it in?
@Sniggiscameras7 ай бұрын
It works perfeclty fine without any grease. I was using pure alcohol.
@@Sniggiscameras I like the style of the tutorial. :)
@Sniggiscameras3 жыл бұрын
@@OccultDemonCassette thx :)
@henrich48078 ай бұрын
question, what happens if i use the auto aperture (my camera doesn’t support it), will it be wide open or stopped down?
@Sniggiscameras7 ай бұрын
Depends on how you position the pin on the back of the lens. If you lock it, the aperture will be fully stopped down, if you free the pin the aperture will be wide open
@davehyper78354 жыл бұрын
excellent video tutorial. quick question.... rather than take the whole aperture assemble apart could you just submerge the whole thing in alcohol (ipa) to clean the oil off? thanks
@Sniggiscameras4 жыл бұрын
Yes thats possible but you probably don't reach the back of the aperture and its hard to get them cleaned properly if they arent dis sassembled
@davehyper78354 жыл бұрын
@@Sniggiscameras okay thanks for your reply.
@fer2000153 жыл бұрын
Thanks a lot
@Sniggiscameras3 жыл бұрын
No Problem :)
@javierbasilioriveralopez79834 жыл бұрын
Genial! Llevo rato buscando como reparar eso
@Sniggiscameras3 жыл бұрын
Me alegra oírlo
@heroofhonor3 жыл бұрын
Thank you for the Video! - do you need to re-apply any oil or something to the mechanic?
@Sniggiscameras3 жыл бұрын
No! The aperture blades work without any lubrication
@daniluzzer3 жыл бұрын
Hi, when you clean the blades. what about the base of the blades? do you have to clean it? and the oil inside the base of all aperture mecanism? Thx
@Sniggiscameras3 жыл бұрын
Yes, clean everything possible, the aperture mechanism doesnt need any oil .
@polpedra2 жыл бұрын
Hello! Everything was good but when I put back the diaphragm won't open, it's always closed
@Sniggiscameras2 жыл бұрын
Is the pin on the back at the mount locked?otherwise it only closes if you take a shot with the camera. Maybe you assembled it wrong and the pin in the lens is not connected to the adjustment ring
@polpedra2 жыл бұрын
@@Sniggiscameras Yes! Sorry, it is waht you said. It only closes if I take a shot with the camera. It's ok, thanks!
@Sniggiscameras2 жыл бұрын
@@polpedra If you want it to be closed without having to take a shot you just have to lock the silver pin at the back of the lens, then it should close.
@kenshincorral34073 жыл бұрын
I have a canon fd 200mm 1:4 lens is it any different disassembling compared to this? And can i dip the blades in hydrogen peroxide?
@Sniggiscameras3 жыл бұрын
Its definitely different to this one but the repair is doable! Of course you can dip it in Hydrogen Peroxide, a good alternative to ethanol!
@obgmd26243 жыл бұрын
What is the silicone tool you used to disassemble the lens?
@Sniggiscameras3 жыл бұрын
Its not a Special Tool, just use some kind of rubber
@DasPlattenTier3 жыл бұрын
I have the same from ikea, it's yoused to keep cut ends of fruit an vegetables from drying out.
@Sniggiscameras3 жыл бұрын
@@DasPlattenTier yes exactly😂
@plex85114 жыл бұрын
Hi! Thanks for the video. I have a problem with my FD 50mm 1.8 (silver ring, the old version), my aperturte doesnt work, its stuck. I tried pushing the small silver button (what is behinds the lens) and the aperture works but when I put in on the camera again its just stuck again :( Can you help me pls?
@Sniggiscameras4 жыл бұрын
have you locked the pin on the back of the lens?
@plex85114 жыл бұрын
@@Sniggiscameras I guess that yes, because now it is working well... I don´t understand why but now works haha thanks!!
@Sniggiscameras4 жыл бұрын
@@plex8511 no problem :)
@suprize62963 жыл бұрын
is the process on a FD 50mm F1.8 any different to this?
@Sniggiscameras3 жыл бұрын
I dont think so
@keisuke9033 жыл бұрын
I tried to repair mine today, but my "lens Element" thats supposed to be twisted out, didnt move at all. Could it be possible that there is rust in it so its stuck? I saw a few other videos, on the nFD version where the element wasn't even screwed in place an could pop out by just turning the lens upside down. I will try that method tomorrow. Hope that explanation is kind of accurate (im from germany and nkt that fluent in english 😅) Smart to comment with nother of my accounts...
@Sniggiscameras3 жыл бұрын
@@keisuke903 du kannst auch gerne auf Deutsch reden ;) ja ist durchaus möglich mit dem Rost, tröpfel einfach ein wenig Alkohol oder Nagellackentferner an die Stelle vom Gewinde, das zieht schnell ein und ggf. löst das die klemmung.
@suprize62963 жыл бұрын
@@Sniggiscameras Ich habe mich jetzt einfach dazu entschieden mir ein nFD 50mm 1.8 zu kaufen. Das mit dem Alkohol habe ich versucht, aber leider hat es nicht geklappt. :( Ich danke dir trotzdem für deine Hilfe!
@MrEricschaut3 жыл бұрын
What liquid did you use to clean it?
@Sniggiscameras3 жыл бұрын
Ethanol
@tilica53539 ай бұрын
I use Zippo fuel lighter ,is super ok .
@airdsuk3 жыл бұрын
Ah the great WIHA/Xiaomi driver set. Buy one, buy once. Easily available, from AliExpress, EBay, Amazon, etc.Just watch the included cross drivers bits (Phillips) are NOT technically correct , while the lens' set screws will be more likely JIS. (Japanese Industrial Standard) en.wikipedia.org/wiki/List_of_screw_drives#JIS_B_1012