Lens spanner wrench - how to avoid a disaster while using this tool !!!
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- Опубликовано: 15 дек 2015
- www.fixyourcamera.org/
Lens spanner wrench, and some tips on how to use it safely. I got many lenses on my bench over the years, with some heavy damage caused by this tool. Also, I am sure that some of my customers were trying to use some other things instead of a lens spanner like 2 flat screwdrivers or 2 sets of tweezers to remove the front lens group assembly. The end result of this is almost always a very expensive disaster. So hopefully this video will help you to avoid such a disaster and complete your repair successfully. You don’t need expensive tools, if you know what you’re doing. So this is a cheap lens spanner wrench. I don’t remember how much I paid for it, since I bought it a long time ago as a spare one, but it wasn’t expensive. These days you can buy a much better one for about 10 or 15 bucks. This is not something I would use while at work, but I don’t expect you to buy an expensive tool, just to use it for a single lens repair. So as a rule, I’m going to be using the same cheap kind of tools here on this RUclips channel and my website, to get the job done. Although pretty much all of them have some kind of twist or are modified in some way to make them acceptable and I’ll talk about this in future videos. Okay so the 1st thing you need to know about this tool is that there are several kinds of tips available. The 2 most popular ones are flat, that’s why some people use 2 flat screwdrivers instead, which is a crime if you ask me. And the 2nd type is pencil like sharp, that’s why some people use tweezers, which is also a crime. So before you buy this tool, take a look at your lens and determine which one you need. It is possible that outside of your lens there is one type and inside there could be some elements requiring the other one. So it’s probably best to buy a lens spanner with replaceable tips or a set of 2 lens spanners with 2 kinds of tips. And trust me, 10 or 15 bucks is well worth it. The front glass element is usually expensive, in some cases it can set you back several hundred bucks. But that’s not the only problem. It might be impossible or very hard to find it, depending on the manufacturer. So for example Sigma or Tamron won’t sell you any parts, same with Nikon but for some more popular Nikon lenses you can find some parts on eBay or other Internet websites. With Canon, especially in the US, you just call them and you get the part within a couple days. Even if you don’t know the part number, they will help you find it. Now assuming that you can get the part you need, it’s still not the end of your problems. And that’s because the new front glass element might require adjustments. And these can be a pain, or simply impossible to do at home, again, depending on the lens. So I hope you get the point here, it’s well worth to pay 10 or 15 bucks and avoid all of these problems.
Once you get a brand-new lens spanner wrench, take a close look at the tips. There might be some imperfections making the tips incredibly sharp. If so, you can sand them with a high grit sandpaper, like 1000 or 1500 grit. Don’t go overboard with this so that they don’t become rounded, especially the flat type, otherwise they will slip easily. Once done, test them on a piece of plastic or a sheet of paper. If you cannot make any scratches under any angle, they are good enough. I also put small pieces of Kapton Tape on this thing, since I really don’t trust it.
With the right tool, the job is going to be much simpler and much easier. Even though it’s a very cheap tool. Of course you still have to be very careful and pay attention while using it.
Hi, I am Mike, independent camera repair tech with over 10 years of experience, working specifically on cameras and lenses. I love it! And from time to time I record a video showing some teardowns, reviews, repair tips of photo gear. Subscribe if you wish, there is more coming soon! All questions are welcome here!!! Although, I definitely don't know all of the answers… :)
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After a decade on RUclips looking at lens videos, RUclips just shows me your channel NOW????
With my lens spanners, i kept slipping and damaging the ring or even the lens. Luckily i only used it on very old/cheap lenses for learning how to use it.
Turns out, the screws used to lock the spanner(and tips) in place would loosen easily, after applying some force, or just holding it differently. This means that the lens spanner would just move the tips more closely once you apply just a little bit and force, which would cause certain destruction.
Solution: don‘t use it. But if you only have this option, another option would be to use pliers to really fix the position in place. Still not ver reliable, but better than just turning the screws with your hands..
I will be looking for a better lens spanner.
Good tips. Thanks for making this video. ¡Gracias!
Excellent video. The Nikon 180mm seems to be a lens that suffers from a range of problems ranging from dust through to fungal growth on the glass. I'm hoping that one day you can get around to doing a video on cleaning one of these lenses that has no rear glass protecting the lenses shutter blades.
Nice to see a pro give the tips.. :)
please make a video about dissembly of Olympus om 35mm f2 manual focus lens! thank you!
nice tutorial man, liked and subscribed :)
Great info! I have a 35mm Leitz lens with a stuck focus ring. What do you suggest? Is it something I can remedy myself? Thank you
Thanks for sharing!
Hi awsome videos by the way , i have a nikon 50 f1.8 ai its fairly simple to take apart but i need some advice on the front element group,there are 3 elements the first one is easy but the 2nd one needs a small internal lens spanner can you recommend what type i need .thanks
Hello Mike,
I am trying to remove the front lens element of my minolta apo af 100-300mm but is seems stuck, i cant see any residu of the glue or something else. What i am doing wrong. Greets Roland
what is the brand of real good spanner for lens disassembly ? The professional kind. Thanks!
Great video!
What would you recommend for the better quality spanner wrenches? I heard SK grimes is good, is there something a bit cheaper, or that has interchangeable tips? $140 is a little steep for 2 wrenches, especially since I rarely end up NEEDING a spanner wrench (I usually can get away with a set of snap ring pliers or the like. Yeah, I know it's a crime, thus my desire for the right tool that actually will last more than one use LOL)
Can the lens spanner tool be used to correct a minor indentation at the tip of your lens? This happened to me and my shattered UV filter cannot come of. So, I am seeking advice.
Stunning
Hey there,
Thank you so much for doing these videos. I am wondering when you will be upload the teardown for D7100? There seems to have some dusts in the on/off switch and I'm thinking to clean it myself.
+Jim Huang D7100 is Teardown is comming. I am still very slow at editing and still learning how to work and record videos at the same time, so it might not be as soon as I would like it to be. Common problem with on off switch. Remember there is a 300V capacitor inside! Depending on your skills it might be a quick and easy job or a complete and extremely expensive disaster:) Be careful...
Hey man~ How is the D7100 video going? I hope it is still coming up~ :D
Great videos. Can you recommend a good quality spanner wrench? I see a lot of cheap ones out there. Same goes for JIS cross slot drivers.
If you don't need a long reach. This V style lens opener looks pretty good: ruclips.net/video/o81AdOO3ejw/видео.html
in a manual Canon 35-70 macro FD lens. how do you repair the front focus? The focus ring is not rotating the front lens.
probably not worth your time, these sell for $30-$50 on Ebay in very good condition.
when a filter becomes stuck on a lens is it best to warm and chill the lens and the filter will un-thread easily?
+Bob Jimenez There is a tool called "lens filter wrench" or something similar, costs about $1 with shipping included on ebay, amazing price:) and does a very good job, make sure to choose the correct size / diameter for your filter
I'm about to begin purchasing a set of vintage photo lenses for cinematography. I'm based in Japan where I can get good prices on secondhand Mamiya Sekor C 645 and Canon FD prime lenses. Of those two type of lenses, which would you say are the easiest to dismantle and clean? I ask because I can get especially good prices on lenses with fungus, etc - and, thanks to your tutorials, I'm quite keen to buy "junk" lenses and fix them myself! :-)
Hope you see this message and can offer your opinion on the subject.
If anyone here in the comments section has an opinion on the difficulty of dismantling and cleaning Mamiya Sekor C 645 versus dismantling and cleaning Canon FD prime lenses, I'd also be very grateful for your advice (I notice that some of you seem to have extensive experience). Thanks :-)
Hi .. I have a chinon multi coated 1 : 1.7 . 55 mm.
what do I need to get the front element off. Thanks
most likely, you need a rubber lens tool. There are many names for it, but try to google "Japan Hobby lens Tool". It's a set of 6 rubber "rings" that will help you to unscrew the front part. And a bit of alcohol, just don't flood the whole lens:)
Thanks Mike! much appreciated.
So far I've been really lucky with my second hand lenses and I've not had any major problems, but I'm sure the more Bronica lenses I buy it's only a matter of time. I do have an Olympus with a single spec of dust which, knowing how cack handed I am I'm better leaving alone. However I'm thinking of buying an old dirty lens just to try pulling to pieces.
Very good idea to learn!:)
Good video, however, the only thing you didn't mention is how to actually USE the lens spanner! ... (Look for the two notches, how much applied force etc... ???)
Where can a person purchase a high spanner? I see hundreds of cheap Chinese tools everywhere, but no quality...