Every day I thank heaven for all you folks who post these amazing videos. I was able to repair the cracked mount on my 18-105mm lens by following this video. Even though I broke the AF contact wire (and soldered it back on), and flipped a tiny screw into the air with a pair of tweezers (easy to find on a light colored carpet) I saved well over $150!
The reason for Nikon using a plastic bayonet, is to save the lens and camera from breaking when dropped. It's a deliberate weak link. Good video, thanks.
Great video, although at 5:49 5:51 putting the connector back up was missing... I figured it out. Thank goodness for these videos and thank goodness these parts are still available. All in all, took about 10 minutes. Does help if you have a tiny tool set.
Just repaired a "parts lens" which was fine except for the mount. Great instructional video. One suggestion: Before you try to attach the grounding pin (that spring-loaded thingy) to the new mount, drive the screw into the mount first, then back it out and proceed with the actual attachment. The hole in the new piece is likely to be tight and it is a lot easier if you pre-thread it like that.
Wow I know this a old post but it is still very relevant with these plastic mount lenses still in use! I was able to replace the mount with only one problem...the little tiny wire broke off of the pin!!!!! I should have done a video on how I reattached that itsy bitsy wire to the tiny little pin! Quite a challenge! It is fine now! Thanks!
Thank you .. I replaced it very quickly and correct. it took me about 15 mins. Just had to make sure the screws were taken out carefully and placed carefully. I did that by using tweezers in the video. It helps a lot. the bigger screws use your fingers to pull out before fully unscrewed. a few pauses and rewinds and everything came together nicely. after I replaced it. I couldn't tell if my old mounting ring was damaged it wouldn't hold together so something was wrong. if Not I have a spare for now. But the replacement works fine. I bought the part from amazon used for a couple of dollars. I didn't even bother to ask a repairman to fix it. They seem to be crooks. It's always better to fix it yourself if you can.
great video, thanks for the help!! ive managed to fix my 55-200mm VR lens!! spare part off ebay and a little patience. Little tip for others going to try this, ensure you put your tiny screws back into the correct locations - i managed to get two of them mixed up and the auto-focus and VR wouldnt work properly, swopped them back over and all good!!!
Awesome - thanks! Just finished fixing my lens. Other than accidentally dropping a screw down inside the lens - it all went smoothly! Using tweezers like the video was hugely helpful too. And magnification.
Thank you for the video. It helped me a lot when I replaced by plastic mount ring. This seems so slick and easy on the video. It was much harder for me. The parts are tiny and have to be positioned exactly. On my D90 there were two sizes of horizontal screws. Two large ones that connect to the electrical device and 3 small ones that connect to the plastic inside ring. Be aware of this and don't mix up the screws. After trying for hours I was unable to get both screws into the electrical post (the part with the 8 silver tabs). I ended up just using one. The camera seems to work fine.
Yes, I was disappointed when my lens mount broke after the camera was dropped however I am pleased it was not the camera mount that broke. My lens has a slight rattle so I guess there is more damage than the mount only, hopefully not too expensive to fix. The 18-105 much better than the temporary filll in 18-55. I'm looking forward to my 16-85 to arrive!
Philc728 thanks for watching! For the welding operation is sufficient 15W welder. The welding is very easy and only in one point. The only care that I would suggest is not to touch any plastic component with the hot tip of the soldering iron. Thanks again, Luca
Hi! Is there any chance of replacing the PLASTIC bayonet mount with a metallic one? That would be a great upgrade. I have an 18-105 with a broken mount, so I have to occasion to upgrade it to something better.
I am super glad to hear about this as it just happened to me. But since I am enroute to my honeymoon soon, I just bought a different lense. I'll be sure to give this a try upon return though.. Where did you get your part?
@@SmartbombITA è il filo che collega a massa tutte le parti metalliche dell'obbiettivo. Se non lo colleghi funziona tutto lo stesso ho fatto alcune prove.
@@pertileluca Grazie mille , purtroppo cambiando la corona in plastica ed nonostante un lavoro delicato il ''pirulo'' a molla si è sganciato(è una parte delicatissima) dal cavetto ed non ho avuto per il momento modo di risistemarlo , la porterò in centro assistenza ma rimontando tutto funziona apparentemente tutto come prima , ma il mio dubbio è se lo lasciassi così (perchè effettivamente funziona tutto come prima)darà problemi in futuro? ad ogni modo grazie al tuo video guida ho eseguito alla grande il rimontaggio , grazie ancora.
Brian did you break the wire while changing the bayonet mount? If so what did you use to solder it back on . It's quite a fine wire. Is there a video for this as well. Any help would be appreciated
Thanks for posting this video! The first part that you removed. What is that called? That part is also broke on my camera and I need to replace it, but I don't know what it's called.
Thanks for the video. Do you know the size of the 2 screws on the main contact point? (the ones just to the right and left of the line of silver beads). Both of those screws popped out on my lens and I can't find the right size replacements. Also, what size screwdriver are you using? Thanks in advance!
Yes the plastic part is CHEAP and breaks easily - I lived with an issue of on part of the bayonet broken for a year - then a second one broke = useless. The lens is near £100 - I reckoned Nikon Repair would charge me £50 plus the postage and the hassle... Two minutes on the internet and I could see this was reported and research and you could buy replacements for £3 - and this video (and still photo) instructions... So decided to give it a go. The eyes aren't so good now I'm 66 - but with a magnifying glass two small + screwdrivers and 30 minutes of patience (mainly thinking) - it was done.... MANY THANKS TO FOLK LIKE YOURSELVES.....
Thanks for the video I was able to fix my camera, caution to the wise make sure you don't use the tweezers for the cable attachment my screw went flying! It took ages to find it. : x
What do you do if the little wire that was supposed to be removed with the screw, breaks off from the camera? I don't even know where it was attached to originally. Once I figure out where it goes can it be superglued on or how do I resecure it?
Thank you for the video... but... I failed trying to put back the ground pin, the little screw got inside the lens, blocked the zoom ring and would not come off... tried to further dismount the lens looking for the damn screw... finally threw it away, just saved the lens cap and the rear lens group which makes for an outstanding loupe. Good luck to the next braves!
Hello there, from what you describe I think it's the diaphragm that does not work. I believe that the contact lens is not working. Be careful if they make contact with the camera. Let me know the results of the repair
monkey3342 1 second ago I accidently separated the wire shown at 2:40. What is it called and is there a tutorial showing how replace that? Be careful it is extremely fragile!
I replaced the ring, but now when I look into the camera its dark, and it wont take pictures on AF now, only on MF and when I take a photo on MF its dark as well. Please help if you know whats wrong. Thanks
You really conveniently omitted the re-attachment of the wire. I'll have to re-solder the wire back and I'm not sure if I should lengthen it by a half inch or so. It's a very tight fit. I wish you had addressed that in your video. Otherwise, It's helpful. - Thanks.
My screws are too tight! :( I tried to do it myself with my new micro screwdrivers, but some of the screws didn't want to move right at the beginning! And I'm too afraid, to destroy the screws..Does somebody has a tip?
I tried this and was fine until I tried to place outer screws back in.. The black casing will NOT settle flush with the outer edge of the lens. The holes in the metal rings and the inner plastic ring all line up, yet something underneath them seems to be obstructing the placement... I bought an upgrade lens but I wish I hadn't had to pay to replace this..
BEWARE. When re affixing the tiny wire, the new unit is not threaded so the screw has to re tap the plastic. This requires a lot of pressure, best to do before actually attaching wire. I broke the wire off so now have a manual only lens as the auto focus no longer works.
Thanks for the video. Very helpful. However... This whole "plastic bayonet rings are just a cheap alternative to metal rings" is largely misled. First of all: Most lens MOUNTS are in fact plastic even when the outer tab ring is metal. Because by mount you mean the whole ensemble not only the tab ring. Plastic MOUNTS are a very good thing... Don't take my word for it. Look it up. www.lensrentals.com/blog/2013/12/assumptions-expectations-and-plastic-mounts Anyway. Plastic tabs are also somewhat of a safety feature. They are easier to break than metal tabs, yes, but that is, in many cases, a VERY good thing. Because a tab ring is like 18-30$ and you can replace it yourself. Whereas an entire lens mount or worse yet a CAMERA mount will not only be much more expensive and need professional service. Managing to break the actual lens mount might also mean you have knocked you elements out of alignment or even worse in some cases bent the camera mount ring. So the tabs will break off before anything else gets damaged. Other times however you can't get away with plastic tabs because a lens will be long and heavy so you need more rigidity out off the tabs to make sure the lens is not drooping. Now, I'm not arguing that lenses SHOULD have plastic tab rings. But I am saying that It's not just a cheapo solution. Besides don't assume that making the specific part out of metal is all that more expensive than making it out of plastic (it IS but not by a lot is what I am saying, especially when nikon already make a compatible metal ring, for the 35mm prime If I am not much mistaken)
Hi Luma, I do have the same issue. When I enquired they wanted to examine before quote me. £200 charge was it from Nikon Service Centre in Kingston? Finally, how did you manage to fix it? by yourself?
Luca Pertile I did, but my lack of patience made me disconnect that tiny wire... Now I don't know how to fix this. I have found another store in London to fix it for £50 though.
Pretty easy to fix until you lose the smallest spring in the world! Mine is an AF-S 55-200--couldn't find the fix video on that--slightly different configuration. I'd throw it in the lake but I'd want a picture of me doing it! This stuff is made by goons.
The intent of this video is wonderful. However, after much care and painstaking detail work with magnifiers, tweezers, printed pictures and all, the repair failed and the lens is going into the garbage can. After watching snippets over and over to try to figure out where all the parts go (an exploded diagram would be helpful), during the process the little wire broke. I decided after about an hour to stop wasting my time with this microsurgery. If I did this all the time the video would be easy to follow, but it reminds me of McCoy trying to put Spock's brain back in his head while the effects of The Teacher are wearing off. Fail.
Thank you so much for your quick reply to my comment! As well, it has been too tedious for me to follow without, say, an exploded view of the lens (and I am a chemical engineering technologist by trade). In the video the lens is rotated often and all the circular parts are hard to figure out their orientation. Even with me having taken up to 6 screenshots and printing them out and scotch taping onto the desk laying out all the screws as they come out of the lens. I am not a camera repair person and its really hard to know how all the parts go together with all the rotating of the lens in the video. I had to give up as it would've taken me another hour to put the lens back together. Your video, even despite, is highly appreciated. To someone else I'm sure it is extremely helpful.
