Focus problem in AF-S NIKKOR 28-70mm 1:2.8 D ED and other details
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- čas přidán 10. 09. 2024
- This AF-S NIKKOR 28-70mm 1:2.8 D ED had a focus problem because one of the circuit board was coming off the dubble side sticky tape, and that way the focus scale was hitting the circuit board. but it was "easy" to fix with another piece of strong dubble side tape that carpenters use, and now it work's perfect again.
Here are some link's to different repair tool's:
SpyderLENSCAL:
www.datacolor....
Japan Hobby Tool rubber cone:
www.amazon.com...
18 different size rubber repair tool's:
www.amazon.com...
Divider Caliper Wing Compass:
www.amazon.co....
You can also buy this set.
Lens Repair Set with pointed, flat, half flat tips:
www.amazon.com...
JIS cross head screw driver's:
www.amazon.com...
Or this set, that is the set I use:
eustore.ifixit...
Lens cleaning wipes (PEC-PAD):
www.amazon.com...
Thin Cotton Buds x 200 you can buy them here:
www.muji.eu/pa...
DSLRKIT Pro Lens Vise Tool Repair Filter Ring Ajustment Steel 27mm to 130mm:
www.amazon.com...
Japan Hobby Tool Herical Grease Made in Japan:
www.amazon.com...
Loctite 222 50ml Threadlocker
www.amazon.com...
And you will also need some Isopropylalcohol 99%
And sometimes Lighter Fluid that is very good to clean lens element's.
NOTE: Do NOT! use Acetone on platic part's, it will damage / melting the plastic!!!
picked up one of these in “broken” condition for $60 and it had the same problem as this one. using your video i was able to fix it and now it works good as new! thank you
Thank you very much for this great video!
I had a non-working autofocus for many years.
It would sometimes move a few mm's but was basically dead. Manual focus was no problem.
I disassembled the lens, including the main FPC. Could not identify any faults, so I cleaned all sliding contacts and the magnetic stripe with isopropanol and replaced the double-sided tape for the circuit board.
Put it all together again and ...autofocus was working!
I owe you a case of beer!
Dude, I love your sticky note intros. Never change, that is like your signature intro.
I will continue with them, because it's much more easy to show the points to other people.
I have just used this to repair a lens that was reduce “due to focusing issues” I now have a fantastic lens. Thank you for the tutorial
I have the same lens with the same problem. Tried to send to Nikon for repair but they will no longer fix these lenses. This video so well documents the repair process that I'm going to try it on my own. Thank you so much for the encouragement.😀🔧📷
Same lens, similar problem. All of a sudden stopped auto focus. Tried moving focus ring several times and found it was hanging up slightly and progressively getting worse. Followed the video, inspected and found the circuit mounting ring (hexagonal metal ring) was slightly distorted causing the brush contacts to hang up. I lightly squeezed the ring and rechecked-smooth action / no sticking. Cause was probably due to temperature changes over time resulting in some metal warpage. Also note: do not over tighten aperture ring screws (long ones) as binding will occur. Just snug with some threadlock and all is good. Thanks for the video!
russ duchaney how long did it take you to take apart? I’m having same issue. Thanks
Thank you sooo much. I inherited this lens, besides being exactly what I was looking for, it's got some sentimental value. I had this exact issue, and with Nikon's repair centers being closed I ended up doing this fix myself. That last step getting the aperture ring engaged was a real bugger.
That's a surgery!! I went through the whole process and I think I'll take it seriously to give a try repairing mine...
Thanks so much
Thanks Miguel, and remember to take many pictures during the process, it's you "backup".
I had the same problem but from different causes. So what happened was that M/A M switch window (take a look at 19:53 where the cables are passing through) has something like a tape holding the cables. That thing has been detached and falling on the focus mechanism causing a terrible sound, slower focus and sometimes stuck focus. The solution was to glue it to where it was at first. My comment is for anyone wants to try this first before disassembling the whole lens. Saying that, this was a nicely done video with complete instructions. Wish you make another one for my problem which remains unsolved, the hard to move focusing ring in manual mode after a fall.
Thank you.Just finished fixing my lens.Works great again.
Thank you for your video. This was my favorite lens until I started having the same focusing issues with it. I was so excited to try this and went and bought all of the equipment needed to take it apart. Long story short I ended up throwing the lens in the garbage after trying every trick in the book to remove an absolutely frozen screw. I got all of the screws out but one--completely frustrated that you can't send it to them to repair and they make it impossible to repair yourself.
@bennyhalftail I hope you didn't actually throw the lens away. Saving them for parts or selling them for parts like on ebay is worth the hassle. In the past, I've resorted to drilling out screws. Not pretty but necessary. Sometimes you can recover from it, sometimes not. @mikeno62 is an amazing resource though and his videos and direct responses have been very helpful.
Awesome video as usual! I had the same problem and this fixed it, but I didn't remove the ribbon cable. Instead I just epoxied it down while it was still in place. Just another word of caution. Lining up the aperture lever attached to the mount on this lens SUCKS!! The fork that Mike describes is VERY difficult to get back in. One side of the fork is flimsy metal and mine got slightly bent which made it impossible to put the lever in. I had to use 2 paper clips to spread it apart again and then I was able to get it in...after 2 hours of dinking around with it. Anyway it all works now! Thanks again for the great tutorial!
Ok, I had the same issue and with your help (thank you) , I decided to do surgery on the lens, but once fully into the repair I altered the repair, that made it easier. Instead of completely removing the multi sided plate by unsoldering the wires and removing all the ribbon connectors, I just removed the 3 screws as in the video, and only removed the 2 ribbon cables to the left of where the 2 side by side screws, this allows you to gently pull the lefts side away from the center section to gain access. Once it’s moved to gain more room, I decided to just push in the circuit board essentially resticking it back onto the plate, then while it’s pulled out,ma strategically used a hot glue gun to place several low profile dabs of hot glue in several places, securing the printed circuit board. There is a hole in the center of the circuit board that can also take a dab of glue. Once glued the circuit board should remain firmly attached. This eliminates the removal of the wires, and removal of several ribbon cables, saving time and potential damage to the ribbon cables, with accidental misstep with hot soldering iron. This whole thing took about an hour, and was all made possible with mikeno 62 excellent video. Did have a small struggle with the aperture lever,band after I got it in correctly, I found I needed to reset the slotted tabs to gain full range of aperture, for both manual setting and the lever. Long story short, tried the lens and all appears to work excellent, though it has the auto focus squeal from time to time that some of these lenses exhibit. Other than that all is well, hope this helps anyone who reads this. Next up will be extensive disassembly of a D800 to replace the shattered top lcd/ bent top cover that I somehow broke (oh fun). Just waiting on parts to arrive for that. Thank you mikeno62, love your vids. They help those of us who have the patience to get in there and fix this stuff.
Extraordinary, Mike ! I can do soldering (incl. SMD) since decades well, but i wouldn't do this with my 28-70/2.8 ED Nikkor. Congrats for a cool job. Your D3s seems to be really battle hardened, it potentionally had seen a lot of things...
Great job with your video, covered everything in detail. I watched another "How to" video and it was enough to get me in trouble. I thought I was just going to try and see if Nikon would consider putting back together for me. You covered it all and I was able to put it back together and it works perfectly! And yes, autofocus and manual! Great Job!
Thank you very much for the detailed instruction sir
just bought this lens on ebay and it has the exact same issue. i’ve never repaired a lens before but im going to give this a try.
This is clearly a common failing of this otherwise superb lens. I'm still using mine on manual focus since at my age I can't cope with tiny screws and fiddly dis-assemblies. Very annoying.
You 're definitely a magician !!!! great job mate !
Terrific ! I enjoyed it thoroughly , probably almost as much as you.
Thank's Dũng, and yes I really like to make that kind of video's, and work with complicated small stuff.
Cheers
Kenneth
Thanks, Mike, from Belgium.
Brilliant video, hats off to your courage and skills. Nikon made a real dogs dinner of the AF side of this wonderful lens. Optically it's a real star, but the AF motor system is a pigs ear. How many of these have got wrong over the years? I reckon this is why Nikon don't have the parts available, all used up, due to repairs world wide. Anyway, Nikon should make these lens (especially at this high price point) to at least work perfectly as manual focus lens if AF fails. Often they cant even focus manually when problems crop up. I also have this lens, but the USM motors were always as squeaky as F, from day one, now it won't focus properly. I think it wont even find infinity in Manual, I need to test it 100% to be sure. It's a darn heavy lens to carry around, some of todays much lighter offerings from Nikon are almost as sharp, so I guess thats that.
Thanks. Manage to repair my lens after watching your video.
Nice job! Dropped mine (the sinking feeling...) and now has a rough spot on the zoom around 37mm. I think I'll just live with it, even though I suspect the nylon raceway around the cam screw just has an indentation due to the impact.
Fantastic video -very good teacher ! I hope many others videos for 2019. and Happy New Year !
The big chip on the other side probably gets hot and caused the glue to soften. Since so many people have this problem it looks to be a design problem.
Merry Christmas and Happy New Year!
Merry Christmas and Happy New Year Brent :-)
Cheers
Kenneth
Very good job. Well done. Would you please tell me that the name of the double sticky tape? Thanks.
Hello can you send me a link to where I can get a lens repaired with you. Same problem as the one you showed but a 17-35mm nikkor 2.8 Thank you
great job
Hello. Please, help - in my 28-70 lens zoom ring move is very hard. Also, the zoom does not rotate further than 50mm, it gets stuck. Thank you.
Question, just received a Nikkor AF-S 28-70mm f2.8. The AF works initially when mounted on camera, but eventually stops working properly, and I notice that the f-stop jumps up to f22 (doesn't happen with any other lens on my D750). The lens also makes a high pitched electronic noise as well, but stops once I unmount the lens. After remounting, works again for a time, but then the aforementioned issues start again. Focus ring is pretty smooth (very little squeaking compared), as is the zoom ring. No issues with the aperture either. Any ideas what the issue could be?
The high squeal pitch noise could be a problem with the focus motor itself.....but there are conflicting questions whether the noise will cause failure or potential future failure. Mine make the noise, but my lens was given to me and I don’t know the full history. I had the same problem listed with the circuit board delaminating and I fixed, but still the squeal remains.....I’m going to ride that issue until it quits, then consider my options. Your issue may in fact be precisely the issue described here aside from the f22 aperture thing, so my advice is if you feel confident you could do surgery to inspect, then go for it. If not....off to Nikon for factory repair. Good luck.
Great video!! I have the same lens that I bought used at a great price because it was not working. The aperture was stuck. This was the only video that I could find to get me close to the problem. I took all the front lenses out to get to the aperture ring. got it cleaned and I'm having a problem getting the zoom mechanism right. it seems to only be able to go one way. But it will not fully zoom. Any ideas?
Hola Mikeno62, GRACIAS POR LA INFORMACIÓN QUE NOS OFRECES EN TUS REPARACIONES. Hace unos días recibí un Nikon 28/70 f2.8 y me encuentro que el anillo del ZOOM va muy fuerte, DEMASIADO FUERTE Y TOSCO. Además la ventana de la distancia no corresponde con la real por lo que cada vez que mueves el anillo del zoom te obliga a enfocar nuevamente. ¿Sabrías indicarme algún motivo? ¡MUCHAS GRACIAS!
Do you know why this lens suffers from stiffness in the zoom ring? Been repaired before but has returned to the same problem.
I have a nikkor 75-300 AF push pull lens which has a problem focusing to infinity, despite the focus ring moving all the way to the infinity mark. I opened it to remove some fungus and since then I'm having this problem. Do you have an ideia what I could have done wrong while assembling my lens?
Very nice video. A little long but good information.
The dental instrument with the orange band is called a “Stellite” a.k.a. Plastic Instrument.
My lens has this exact same problem. I left in the circuitry and just pushed the loose circuitry back on the bracket. This was (not surprisingly) a short term fix. So in the future this will be a nice reference to perform this fix! Thanks for sharing!
One added note; your camera can get a nasty error when the focus ring bumps into the circuitry.
Use some high quality double sided tape from 3M. I wouldn't even trust that, add a tiny drop of super glue.
Dorf Schmidt thanks for the tip!
@@stephandelaat The best tape I've found so far is 3M 9448HK (ebay) for lenses and cameras/rubber.
I ended up not removing the plate or unsoldering any wires. I just removed the screws an the 2 left side ribbon cables and gently pulling out the plate. I then fully pushed the circuit board all the way in, and after it was restuck, used a hot glue gun (several low profile dabs ) to hold it in place permanently, then put it all back together, worked fine, lens auto focus success.
@@ussmillerco I had to redo the repair. I was putting it off but then i saw your reply. It took your advise and did not unsolder the wires and also used hot glue, worked perfectly!
HI Mikeno62. Instead of completely disassembling the lens, you can put a small piece of rubber in a clamp between the print and the chassis.
I have done this on mine, then you are free to solder other than the switch manual automatic focus.
With a piece of rubber, it never comes loose again. With tape, you do not know if the problem will come again after some time.
Hello can you give me some examples of the rubber? I can't figure it out.
I have the same lens and have exact the same problem. DFA in Denmark tould me that somthing is broken inside the lens and they couldn't get sparepart for the lens. The same problem with my Nikkor AF-S 70-200 1:2.8 G. So after this video I'll give it a try. Thx. for the video. It's seem to be a common problem for these lens's
Hi, I had the same problem so I followed the video all went well or so I thought, lens will only work in manual now..where could the issue be. I only removed the solder on the Blue, White and Black wires not the others as I was able to just remove the circut board with them. Hope you can help!
Maybe check some of the thin flex cables, and also check that they sit proper in the connector.
@@mikeno62 Hi, Found the issue it was a small spacer between the circut board and the metal flange ( for the want of a better word ) that it attaches to which fell out when I removed the circut board. Only knew about it when I want back and checked the images I took before i dismantled the it. I cut a small section of a biro tube which worked perfectly and now the lens as you said ' is better than new '. Thank you so much for putting up this video and the others they are super helpful. Thank you again!
So detailed a repair on this lens. Could we use super glue or epoxy to glue the board securely instead of tape?
I am one of your loyal followers. I envy your masterful work. Many times I tried to duplicate and follow your video on the very same lens cleaning, I ended up breaking the lens. Oh well, my question now is "Is there anyway one can reduce the noise when this lens is trying to focus." I have the very same lens and it worked very well. ONLY thing annoy is the noise it makes when it focuses..... Any solution?
I just bought this lens, very cheap on eBay knowing that it had focus issues, but I didn't mind as I was going to use it as a high end zoom in manual focus on my older SLR'S ie F3, FM2 FE2 ect. It seems to have the same issues as this one, so I might strip it down and see if it is the same issue and easily fixed with a bit of double-sided carpet tape. It's funny when you say it like that, it sounds like a bit of a hill billy fix, lol. Well, if it works, it will treble the value of the lens as well as being able to use the auto focus again.
36:59 It's look like defusing a bomb 😂
Like in Hollywood action movies 😀
How long did the fix last before it gets out of wack again
I just got one off ebay...squeaky motor and inconsistent power issues on my F4
Thanks, Mike, from Brussels... L u c ;-)
Thanks for your wealth of information. I was having a hard time putting the lens back together, specifically the aperture in between the tabs, and reviewing your work helped me think it through. What I thought was success though, wasn’t - somehow I have turned my lens into a 40’ish to 70 and there is a hard obstruction allowing the lens to zoom wider. I’ll open it up tonight to see if I can see what I did wrong, you have any insight as to what to look for?
It could be some loose screws, and also check that the aperture sit correct, just some ideas.
@@mikeno62 thanks for thinking about my problem, as it turns out, I bolted a Leitax EF mount onto my lens and the screws used were too long, thus colliding with rear optics housing. the original mount screws are 16mm, need 18mm, but was trying to use 25mm - waiting for my online order, then project will be complete and presumably a success.
Hej Kenneth, jeg har en 17-35 afs 2,8, den er meget lidt brugt, men har ligget stulle i syv år. nu er AF stået af,,,, er det noget du ville ha lyst til at se på?
hola buen día, tengo un óptico nikon af-s dx nikkor 18-55mm f/3.5-5.6g evr el cual tiene hongos justo en el lente que esta sujeto al diafragma y no se como sacarlo para limpiarlo pues no le encuentro pegante o tornillos desde el frente, y desde atrás hay demasiado circuitos electrónicos y se ve mas complicado. Alguna sugerencia?, sabes de algún link donde pueda bajar el plano de desarme de este lente?. por favor. gracias
You will find the Repair manual with this link: learncamerarepair.com/product.php?product=302&category=2&secondary=8
And this is the Parts list: learncamerarepair.com/product.php?product=301&category=2&secondary=8
@@mikeno62 muchas gracias. bendiciones
What was the reason for replacing the connection ring with the diaphragm to connect with the smaller f? (f / 22) Thank you.
Hey where did you buy the extremely sticky double sided tape?
I think you can buy it in the hardware store, it should be "3M" or "TESA" tapes. It could be this one: www.amazon.com/3M-Heavy-Mounting-Multiple-Sizes/dp/B01EOEW25S
I could need some Help! I have the exact same Lens with nonfunctional AF. in hope this would be the problem, I changed those tapes and reassembled everything without any damage. But sadly the AF still doesn´t work at all! The Lens was shipped to me and before shipping it worked. Is there any other common problem that could couse this problem?
Thank you very very much for this wonderfull video! I wish this would have been the only defect on my copy....
My lens is put on camera, then camera said lens is not attched! I tried to clean, but still the same! Do you know where can I order for the part (the thing is connect with the camera, I do not know what is call!)
Hi sir, I have the same lens same problem at the same place. can you send me a link to where I can get a lens repaired with you. Thank you!
Sorry, I do not have repair service.
Great video, but is it possible to remove everything and make this lens manual only? because i broke something inside it :(
Yeah, just gut it of the electronics and use it old school!
Fremragende video. Jeg har selv samme linse, og samme issue. Har fulgt din video og er næsten i mål. Auto focus virker igen. Men mine fummelfingret kan åbenbart ikke ramme rigtig med den pind der styrer gelænder. Så jeg misser halvdelen af området. Aner ikke hvad jeg gør forkert. Jeg har set videon et utal af gange. Og ser at du også er lidt udfordret med at ramme rigtigt.
Jeg har parkeret den lidt i hjørnet for at forsøge igen senere. Jeg vil jo helst ikke ødelægge noget i arrigskab😂
If I see this... I think I'll go with the 35-70 2.8. 😅
Ремонт и восстановление Nikon Nikkor 28-70/2.8D - это нечто эзотерическое, что я прошёл уже четырежды. Объектив оптически прекрасен, но за его ремонт и переборку берётся не каждый мастер. Запчастей нет, объективы 17-35/2.8D, 80-200/2.8D Mk4, 28-70/2.8D сняты с обслуживания и признаны устаревшими. Поэтому нужно найти мастера, который согласится поработать шаманом и погрузиться в крысиную нору колодцев этих объективов и искать, что именно там неправильно работает.
У Nikon Nikkor 17-35/2.8D, 80-200/2.8D Mk4, 28-70/2.8D - один и тот же мотор и одни и те же проблемы. Один сплошной инженерный ад. Какую-то часть этих проблем унаследовал 17-55/2.8D.
Объективы серии G вероятно надёжнее этих, которые были первыми опытами Никон с моторными объективами.
Thanks for the video!
Is it possible to declick the aputure like ai/ais lenses
Well, I do not have this lens anymore, but I will take a closer look in some of my other AF or AF-s Nikkor lenses. As I know, many of the AF lenses should be "easy" to DE-click. More videos to make.
Could you tell me if you fix objectives on request?
Sorry, but I have no repair service.
I really enjoy watching your channel. Just finished cleaning up my 50mm 1.4 ai, thanks to your tuts.
I do have the same AF-S NIKKOR 28-70mm 1:2.8 D ED and it would not autofocus on the 70mm end. Since you know so well this lens, what could be the source of the problem?
Would love the answer to this as mine is also being weird at 70mm !
Double sided tape is obviously not a reliable method of fastening. If the lens is stored in hot car then exposed to any vibration the tape can let go or change position. By the time I would have gotten to the problem my family would have interrupted me five times and the job would never be completed. I did not know a Nikkor lens could be both a D and an AFS at the same time.
All lenses are D and AF-S now. Since the "D" day in advertising, they simply phased out that lenses are "D" as it's no longer a advertising big deal, but more of an expectation.
Can you show how to remove the sw motor? Great video it has helped me do much.
should fix the noise problem.
spent 2 days working on it. fixed it. was confident it would work . However didnt understand the last part at all how to reattach the aperture. After 3 hrs noticed the one of the blades had slipped out. Somehow managed to get it back in place but wouldnt open to full aperture anymore. Unless I took the whole thing apart lens became trash. Now in bin.
that af-s motor is shot
hai, i have the same problem, can i send to you my lens for you fix it, i will pay for you service
Sorry, I do not have repair service.
Pete.....you could do this.....just acquire the tools ( soldering iron, Japanese screwdrivers, tweezers, pill boxes for screws, clean workspace etc.) then set out slowly with Mikeno’ vid playing as you work. Go slow and check out my shortcut (in other replies) that saves time and you from some potential damage, and you’ll save that $400. If you fail, just put it back together fully and send it in to Nikon, for me it’s worth a try, maybe you too.
At this point I’d just throw the lens away and buy a new one this is way to much work 40:43
The audio is too low and too distorted.
great job