Nikon Micro-Nikkor 55mm f/2.8 : Stiff focus repair
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- čas přidán 10. 04. 2022
- Hello friends,
Today I show you how to repair the classical stiff focus problem of the Nikon Micro-Nikkor 55mm f/2.8 Ai-s.
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Lens grease :
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Rubber tools:
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Screwdriver set (includes J-tips): amzn.to/3LTPi9G
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(This set has J000, J00, J0, J1)
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If you find this video useful, informative and adds value to you (and possibly saved, or made some money by repairing the camera or lens), then consider donating to the channel - Jak na to + styl
An excellent tutorial, just what I needed to save my lens - thank you 🙂
You're welcome. Please tell all your friends about the channel.
Just finished on my lens. Worked like a charm! Thanks for your great tutorial!!
Saw a past comment where you struggled with screws. Not a problem anymore it seems :) : Don't forget to tell all your friends about the channel. Cheers.
@@diyextravaganza damn screws are tough but you have great advice! I used the right head, heat, acetone and WD 40, depending
@@Bazzasphotolife this lens has tough screws, had gotten in trouble once or twice, that's why I insist a lot on that. Cheers
First class tutorial. A few years ago I had my lens serviced in the UK by a Nikon recommended service centre and it came back as stiff as before, so I just put up with it. After this tutorial it was clear the outer helical has a much stickier grease, I read somewhere this was normal procedure for greasing the outer helical. I used Helicoid 30 grease and it made the action super smooth. I would have liked a slightly higher viscosity grease but it was all I had. It is much better though, particularly in lower temperatures when the lens was a pain to focus. Many thanks for showing us how it is done!
Thanks a lot, very glad you found the tutorial useful !
I cleaned the aperture blades of this lens a month ago and I didnt have the JIS screwdrivers. It was very tough I almost stripped one of the screws but the trick that got me through most of the screws was a QTip lightly soaked in acetone (do not let it drip). you just hold it over the screw you want to remove and it disolves the threadlock on the screws, it makes it a lot easier.
I am very grateful for your tutorials, I have learned a lot!
Thanks a lot for the acetone tip, a new string to my bow. Cheers.
Really appreciate your warning not to disassemble the outer helical (on the barrel) but to clean it in situ. My completionist tendencies would have won out without the warning, but as it is, managed to clean that helical by moving the barrel to the highest and lowest position and scrubbing. Works like new.
I'm also a completionist as you put it, but this is one of those cases where the added benefit is tiny against the required effort. Glad you manage. Don't forget to recommend my content to your friends.
This tutorial is a total life saver! Really great ideas here. I would also suggest that we clean the lens elements while we have the lens components apart.
That's a nice suggestion, thanks. I've several videos concerning this lens, so, if you're further interested you can take a look around the channel. Best.
This video was very helpful for me. Thank you very muuuuch!!!! It was easier to follow than other YT videos for me😘
You're welcome my friend, I tried to make the video as clear as possible so people can perform the repair by themselves. Don't forget to share the channel with all your friends. Cheers.
I have this AIS Lens and picked it up for $75 a few years ago. It is in super mint condition. Honestly i bought it because it was cheap price and but wasn’t expecting much. Then wow my first roll of film shocked me how sharp this little lens is. I also have a 50mm F1.4 AI lens but i don’t shoot it anymore.
This is an incredible lens, no wonder why Nikon still sells it new. Cheers.
Buen video,,cuanta paciencia🖤
Gracias Mikel, la paciencia es en mi opinión la herramienta fundamental para reparar lentes. Un abrazo.
@@diyextravaganza 🖤
Superb, very helpful. I just bought one of these and it has exactly this issue .. so I have to do this job sometime.
Take your time whenever you will do it. This is a job you have to do in one shot. Don't forget to like, subscribe and tell all your friends about the channel.
Thanks. I fixed my lens.
That's great news. Please share this channel with all your friends. Cheers.
Thank you for this video it helped me to save a lot of time !! :)
Best way to say thanks is telling all your friends about this channel. Cheers.
Excellent video and leared a lot. Thank yoou. I need to do the same repair job but I am wondering where to buy the screw driver set. Can you share where to buy nice screw driver sets you are using? Many thanks...
I think on the video description there are links to everything you'll need. Proceed with care with the bayonet screws, they are the main pitfall of this lens. Cheers.
Thanks for the great videos. I can find lots of sources for skf grease lglt 2/0.2 but none for skf grease lglt 2/0.0250. Where did you get yours? Thanks.
I don't think they make it still in such small tubes, I had to give up and buy the 0.2 tube as well. Cheers.
Ok, thanks!
Really interesting video and something that I will do to my own lens. I do have a Vessel set of JIS screwdrivers but am interested in the interchangeable bits that you are using, particularly the bits that fit into a larger screwdriver. Where can I buy these? Many thanks
Rex
Hi, I've found better quality ones since, Vessel as well, Cheers. JIS screwdrivers: amzn.to/3HElRrU
@@diyextravaganza Many thanks.
I will order the set you advised, however, have bought a Vessel set with 000 / 000 / 00 and 0. Both 0 and 00 fit the bayonet mount screws; 0 feels a little 'tight' and 00 feels a little loose. How does one decide which is correct so a snot to damage the screw?
good
Thanks !
Do you have any link for the grease or an alternative? Thx
Hi, for the link, it will really depends were are you located, for an alternative, you can look for a grease, with lithium soap thickener, and low viscosity (around 20mm^2/s ) at 40°C.
Hello, what type of lubrication do you use, what type of vaseline? ThankYou
Hi,SKF LGLT2 as I mention on the video. Cheers.
Hola, donde puedo conseguir las puntas 00, y el mango para ellas, supongo que las puntas son estandar JIS. Saludos y gracias por estos videos.
Hola Juan, gracias, puse un enlace en la descripcion con el set que trae las puntas JIS. Este set trae un adaptador para mango mas grande, y puedes utilizar cualquiera que ya tengas. Un saludo !
@@diyextravaganza muchas gracias, por cierto tengo un lente nikon DX af17-55 f2.8, no funciona el diafragma, tendra algun video sobre este lente? Gracias y excelente canal.
@@juanantoniofotografoprofes324 Hola, no, nunca he reparado esa lente. Que tiene el diafragma, aceite?
what marker do you use, that the lighter fluid does not desolve?
I pay attention, they all tend to fade. I use either stabilo or staedler. Cheers.
Nice video! Triple helicoid is so complicated! Which grease do u use for it? Thanks
Hi, thanks. I use SKF LGLT2 grease, used on industrial applications with good temperature range. Cheers.
@@diyextravaganza I just noticed that the price of that grease is likely the same as a repair at Nikon - wow!
Can you recommend another grease that will work but will be less expensive?
@@Bazzasphotolife where did you check, I just saw it is about 40€ for 180g, and with that, you have for the rest of your life. Cheers.
I'm in Canada, and it's nearly $80 for 150 g. I'm not sure when outside would use it, so I would need to look for an alternative
Ironic (& fortuitous) that I should find this particular video today - my Micro-Nikkor barrel has become almost immovable. I couldn't quite see what marker pen you were employing. The grease is readily available, but those screwdriver bits - are they Jeweller's implements ?
Excellent repair technique - who needs "linear" deconstruction ? 😉
Hello, thanks. For the pen, anything permanent works, the screwdriver tips are japanese, look for J000, J00, J0, and that's the most important thing, don't try with PH ones, you'll damage the screw heads. About the disassembly, I always try to make it as simple as possible. Best
Hello again. Understood, anything indelible, & Japanese J series screwdriver bits - I'll seek same out. In the UK & Ireland, not many camera repair outfits exist anymore - a regrettable downturn - consumers only want something 'new & shiny'; happily, whilst I endorse moderrn technology, I prefer solid build quality, & if that means I have to service my own vintage photographic glass, so be it - & of course, there's always that 'kick' of satisfaction when you complete the task yourself.
Thank you & enjoy the day ahead !
Andrew.
@@andrewtongue7084 repairing is a philosophy we terribly lack today, and that at every level (including human interaction) new and shiny always come like the easy answer but reality is usually low quality on a beautiful shell. Repairing makes us appreciate things, get to know them better, and that deep satisfaction of making things work again. Yes, too bad there is fewer and fewer repair people, recently I started working on mechanical shutters myself because according to the friend who challenged me to learn that, there is only two guys in the country doing it so. Best.
This is familiar territory for me, too, & in fact, we had a similarly-aligned conversation upon one of your other videos only a few days ago. Together with a number of other passtimes/hobbies, I repair (& restore) vintage fountain pens - as well as some of their modern contemporaries; I do not care for ballpoints or rollerball scribes.
It is indeed ironic that, in this twenty-first century, where technological communication is near its zenith, no-one actually speaks to anyone - everything is virtual - especially 'friends', or should I call them. mere acquaintances; howsoever you refer to such, it is yet another destructive attribute that disappears as rapidly as a faulty electronic signal. I digress. I wish you well in making good on those mechanical shutters - it's clear you have the required dexterity - then it can be said, there are three guys in the country who can deliver that fait accomplis 🙂
@@andrewtongue7084 I was traveling yesterday, long flight, when we landed, after some 10 hours flying, the captain said you can use your phones normally, not after 2 second, I saw most people going to Instagram, TikTok and all those silly pages to watch random people doing random things, I don't understand people anymore. Anyway, end of rant. Fountain pens, that sounds really interesting, I remember opening one long ago, not easy thing. I do most of my writing by hand and I appreciate a good pen.
Hello, my copy isn't stiff but the focus gets stuck every now and then, around 0.35m mark. Focusing it back to 0.3 and changing the aperture generally frees it. I think it's the aperture tab getting stuck on something, how can I fix it?
Hard to tell, maybe the fork connecting the aperture ring to the aperture is loose and sometimes it blocks. Try to open the lens and take a look. Cheers.
crazy showing how you open screw AFTER you removed it........ and pushing down the hole.
if screw are stiff to be opened use heat. by putting lens downward onto ceramic stove.only Solved temporarily.2 days Max
Hi, Thanks for the tip. What temperature would you recommend? Cheers.
@@diyextravaganza half of max.heat up til red.start with 20secs. Augment.use rubbersurface when unscrewing. Gloves help.heat to solve Stuff helicoid is only temporary.maybe for a Day or longer. Put lens halfwAy on heat at periphery. One screw heated after the other. Beware of plastic or whatever melting.no plastic at mount Dont fear.
@@michaelprzewrocki4195 Plastic is the thing that afraids me, I never now if the aperture rings are plastic or aluminum. Anyway, I'll try that next time. Thanks again for the tip.
@@diyextravaganza my method only temporary. Did it with the f2.8 micronikkor. 2. Removing screws.Let heat only touch area of one screw at a time. Put it on periphery outer side of heat surface to open one screw first etc.
@@michaelprzewrocki4195 I'll try it next time the opportunity comes up ! Cheers