DON'T DO THIS! Lens Vice Tool to Fix Bent Lens Filter Threads.
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- เผยแพร่เมื่อ 29 เม.ย. 2020
- I had dropped a couple lenses over the last year and decided that I wanted to DIY fix the filter thread mounts on the front of the lens. I bought a lens vice tool that claims it can repair the damage and well, it didn't go as planned.
Have you had success using this tool? If so what did you do different?
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Few things you missed and for people to note… 1st make sure the threads are 100% clean of any dirt or debris before you start. ALWAYS add a small amount of grease to the part of the thread you’re working on AND the same section opposite of the bend where the other part of the tool will be. This will help guide the tool and reduce friction. DO NOT turn the tool around the threads as was done in this video! That’s not how this tool is used! This tool is only used in the section you’re working on. Also DO NOT start directly at the center of the bend. The goal is to massage the metal slowly. 1) line up the tool in the thread right BESIDE the part your working on. Ensure the tool in in the threads and loose the tool just enough to turn it slightly into the bent. DO NOT try to force it over the entire bend. 2) once your slightly on the start of the bend, expand the tool slightly. 3) repeat the same steps on the other side of the bend. Keep alternating until you get to the center of the bend. The goal it to slowly work the outside of the bend inwards. You shouldn’t be moving the tool around or touching any other part of the threads. If the bend is very deep, you can use a thick piece of rubber. material between the tool to bend it out to a manageable position then follow the above steps. And remember- if for some reason you cross the threads, it’s an easy fix when it was just in one section. It’s a totally different issue when messed up all the threads.
the tool works just fine if you know how to use it. You are not supposed to “recut” threads. You just place it on the “clean” threads(non dented) and then rotate it to pass over the dented area. For bigger dents you will need to position the tool right where the dent is(by rotating/following a clean thread) and then screw with enough force to bend the ring back to it’s original place. I have fixed a dozen of lenses using the same tool and I’m not a pro
Yeah I tried a few different things and for me it just wasn't happening. I'm glad you've had success. In the future I'm just gonna try not to drop lenses haha.
@@geoffheith Haha! Fun fact: the harder lens to fix was my most expensive one, my Canon 70-200 f2.8 IS II , dropped by my wife 😰. That thing is a beast(not my wife😛) I had to use so much force, my fingers hurt for a week.
Also, the dent was fixed about 90%(lens cap and filters can screw on it now) but towards the very end, instead of the dent, the ring was expanding on the opposite side 😳. I think that’s because dented metal is harder than the rest of the lens.
I’ve seen some reviews on Amazon that people have gotten these tools but the threads were cut at 1mm pitch instead of the standard 0.75. (Seen the pics that confirmed it) That will definitely ruin everything that thing touches. If you buy one of these get some thread checkers to confirm the thread pitch on these otherwise you’re in a world of hurt.
Thanks for the tip. Just bent my 1st lens. I was in mint condition for 30 years then it met me... 😭😉
got a new lens 1st day it fall out of my bag no filter and no hood will fit .... was an old takumar it lasted 50 years in mint condition 1 day with me and I fucked it up I feel strangely bad about it
Please place a piece of lens cleaning tissue between the lens surface and the cardboard disc. You are scratching the lens coating off when the cardboard contacts the lens coating surface. This small piece of protection with an additional piece of lens tissue protects the surface of the lens at the most critical point, the center, which is the part of the lens which the light passing through actually hits the sharpest point of the sensor. I appreciate the tutorial, and everything you've done is great.
I also found that putting a bit of vaseline on the threads helped to protect the finish. I repaired one of my lenses adequately = not perfect but I can screw on filters.
Thanks for the video. I'm looking at this tool, and I might proceed with it, but that has to do with the cost/benefit tradeoff. I have older lenses that I use with adapters for manual focus use on M43 gear, including a lot of older Nikkors. I've gotten various of these quite cheaply off eBay, and I can likely buy a different instance of the same lens for less than what a professional repair-person would charge to touch them. To get to the point where one of these that has a dent can accept a filter would be a pretty huge win. Plus, I have a bit of a sentimental attachment to the first Nikkor lens I ever bought for myself (several months prior to getting a body I could actually use it on), a 24mm f/2.8 AIS, and that ended up with a dent after I provisioned my wife with that for taking photos on a business trip. Paying a pro to take that dent out would never happen, but having a try myself for less than $40, and the chance to do that for the bargain-basement collection? Yeah, I'll roll the dice. But I can easily see how I would not come to the same conclusion if my Nikkor 70-200mm AFS ED-IF VR lens collected a filter-ring dent. The risk of messing that up further would argue strongly to engage a pro. Thanks again for the demonstration of how this tool is not a panacea, and what parts of use could be tricky to do properly without additional aids. I'm thinking that using some metal shim material on either side of the tool to keep it plane parallel when initially getting the threads lined up could help, though it likely will still be a bit tricky to obtain the right shim thickness to match an arbitrary thread attachment point. Repair shims might be useful here, though a set of carbon steel shims will more than double the tooling cost. So I'm thinking align the tool with shims in place, back off slightly to remove the shims, then proceed to work with the tool. One more thing... while the cardboard disk to protect the front element is a vast improvement over not having anything to protect the glass while working, I have a bad feeling about allowing cardboard to come in contact with multi-coating of any sort. I'm thinking of cutting a Pec-Pad to fit, so that would go between the glass and the cardboard. A piece of micro-fiber cleaning cloth would be an alternative for the Pec-Pad part, and is likely something more people have on hand. And I think cardstock might serve as well or better for the role the cardboard does in this.
Hey Wesley. Yes I agree cost / benefit for sure. Shim idea is great. I did the cardboard as it not only protected the lens but gave a level surface to rest the bottom on to line up the threads (don't think I covered that). But in the end for me it wasn't worth it, but I've seen others have success so best of luck to you, let me know how it goes!
Will this tool fix the eyepiece on Nikon f100
thank you very much sir
What about doing something (whether jamming it on, or whatever) to get just ONE filter ring on it, to let it just stay there, in order to screw other filters into that?
And what on earth does having a "pro" do it, cost? I really have no idea. Some price ranges might be nice to include.
Yeah essentially I was able to do it so a filter ring could get on and off, but thats was it just barely. Not sure what a pro would take to do it, but I had my one lens fixed onetime after dropping it and it was super expensive, like almost worth buying a new lens expensive haha, granted there was much more damage haha
I was thinking of buying one of those but it's a very destructive operation. I'll take to a repair shop instead. Thanks for the video, it saved my lens...
Not if you use it properly and what do you think Repair Shops use! Old school repair guys use Wood to repair bent filter rings and a hammer, now, in the wrong hands that is destructive.
Bummer that happened, the threads are so fine and typically aluminum as well. Certainly can make things unforgiving to errors. As a hobby machinist I am not sure if I would have attempted this on my own or sent it in.
Take Care.
Yeah lesson learned for sure hahah
just take your time, how ever long it takes it will be worth it trust mee, just work it slowly and chill while doing so, kind regards mike in the uk. ps warm the thread up with a hair dryer first from the outside.
Can't believe that people can't figure out how this tool is supposes to be used.
Hahahaha that goat edit for the swear word killed me. Please keep doing that!
Hahahah I forgot I did that.... had to rewatch to see what you were talking about haha.
You must have a really good camera
Does your tool have threads?
Yes it has threads
Tool name ??
Lens thread repair tool.
You did it plain wrong... 😳😳😳😳
I was in suffering while you rotate the cardboard over the lens...
Would love some feedback ... let me know
Light
After... maybe better to use metal lens hood to carry on cutting the metal threads instead of filter..... more to hold on to bud....!!
This is not how this tool is supposed to be used at all. First of all, it's the wrong thread pitch for filter threads (you should have measured it first) and it's not meant to be rotated. It's not a tap and die set. It's a vice. It's supposed to be set against the dent and hammered gently from the other side.
I can tell from the way you cut cardboard to protect the glass during rotation that you're simply copying other TH-camrs who also have no idea what they're doing. The blind leading the blind.
Hmmmm thats interesting. Have you done this repair before? The vice didn't come with instructions and I've used a tap and die set before so thats how I assumed it worked. I didn't see any other youtuber use cardboard just thought it a safe idea. Would love to see how it actually fixes the ring. I don't think you'd hammer it personally as there is thread to turn a handle and hammering seems a little too forceful for such a process. Let me know if you come across a video or blog etc about how to properly do it, would love to see it. Thanks for the comment.
@@geoffheith probably take the barrel off the lens before attempting a repair, it only held by 3-4 screws, then you'll have better hold / grip to fix the lens. I just replaced my lens filter barrel using part from AliExpress, and now trying to experiment to fix the dented barrel using that tool.
Why are you wearing a hat indoors.
Cause Im bald and me head gets cold ;)