Canon Err 01 - How to fix faulty lens communication 📷

[@TheJonotto123321]

just saved my day - started having this issue just before a wedding and no time to get to a shop to repair or replace it , thanks a million

[@maryg6133]

I also suggest go into your cameras setting and do a sensor clean . When I made sure the battery was charge , followed suggestion I looked in the menu and did a sensor clean since I noticed it was doing it automatically. This -worked !

[@repcamgdl]

Error 01 is not caused by dirt on the contacts. The error is caused due a problem with the lens diaphragm (usually only occurs on zoom lenses) NEVER use cleaning fluid on the communication contacts on the camera body! NEVER !!

[@MontaneroPaisa]

Why

[@repcamgdl]

@@MontaneroPaisa diaphragm flexor breaks due movement of zoom. Any liquid may cause internal short circuit.

[@MontaneroPaisa]

@@repcamgdl ah gotcha. Thank you brother for the help.

[@anyangobrandyshow2934]

Please tell me what to do ...I'm using a zoom lens how do I correct it

[@Horatio-Monroe]

How do you fix it?

[@hibhaven]

I had this issue earlier on the 24-105 lens and had to take it to Canon for servicing and it cost me $150. I got this same error today at a professional shoot on the 24-70 f2.8 II, and was shocked that this error turned up in the middle of a shoot without reason. I was worried about another trip to Canon. But on watching this video I decided to try cleaning it with a cloth, and voila, it worked. At least for now. Have another shoot tomorrow, lets see.

[@hibhaven]

Update: Cleaning the lens contacts didn't help. The error kept repeating itself. I finally had to take it to the Canon service centre and it cost a bomb to get the rear end of the lens replaced.

[@cvdrq_]

@@hibhaven😅

[@leanndavis23]

I just got my R3 back from Canon. I put my 24-105 on to see if it was working ok. Took several pictures, no problem. Then later took some more and I kept getting this error. When I took the lens off it made a noise that I’ve never heard before, like a mirror on a mirror less camera. I tried taking the lens off, that didn’t help., I tried taking the adaptor off (I was using an ER on an R3), that didn’t make a difference, also the battery. Sometimes I could get a few shots taken before getting the error again. I’ve never had trouble with this lens before. Is it just coincidence that it did this after having my camera worked on? Canon also working on the adaptor. I have only had the camera for about 2 months before I sent it in because of focus problems.

[@gracederamus714]

@@hibhaven how much was a bomb lol I’m in the same boat for my 24-70

[@glennwatkin7761]

Also when you put the lens on turn the aperture to the highest aperture so f22/29 and take a shot and then turn in it down to as low as it can f3.5 or 2.8 and shoot again I've no idea why this works but it does I

[@Anaxxo]

Need to try this , thanks

[@RomoDisegno]

Worked. Thanks mate

[@jackofmytrade]

It helped for when it's at the highest aperture (2.8), but if I try going to a lower one it still gives the error. Any advice?

[@drazraaz5896]

Bruuu it worked in my case jus today 19-06-2024

[@milissapitel5947]

Worked for me too in my 24-70! Thanks!

[@bunbun8670]

What worked for me was to avoid the narrowest zoom setting on my 11-16mm lens (16mm) - it wasn’t this fix, cleaning the lens contacts, or several other fixes on other KZbin’s - just in case that helps anyone else who hasn’t had success with these tips (which truly HAVE helped a lot of people, so thankyou btw)

[@Tornado.EOS.Software]

Your attention to detail in diagnosing and fixing issues with Canon cameras is truly commendable.

[@farolanramadhani7218]

Thank you! I was scared to death that my camera is done for. This video is really helpful, I love that you explained this issue in such a simple manner.

[@JCozzyphotos]

dude. fixed my wifes 24-70 just now. she cried as she was so happy. thanks man

[@ATAPstudios]

The tip really helped me out today. Thank you very much for making this video @LensProToGo😀

[@sagarika1919]

Cant believe this worked! I was mid-shoot, very stressed about the contacts being damaged. Thanks a tonne!!!

[@FarukTecHBd]

You saved my camera & cost with this fix! Thank you so much :)

[@yarsmythe]

I had already wiped the contacts with no luck, but this video made me want to try again. I used a different cloth and spent a little more time wiping it down. Unbelievable, it's working again. I took over 100 photos with no error message. In the past, up to 10 would return the error. Sure hope it lasts until I can finally afford to purchase an R setup.

[@sondrag2]

.for those using off brand lens..i found the error came up when i used dslr canon with "pull style " manual/AF on the lens,it showed the error when i kept my pre-sets on ( portrait,sport,TV) and used manual setting on THE LENS. i am thankful for your video for helping with cleaning process..also!

[@manykdalaloxyn5137]

sondrag2 m

[@casketman14]

you saved my life. I've forgotten about the af function for auto and Mf for manual. thanks

[@blake3474]

So what settings should I keep it on

[@Lucas-t2q6l]

Thank you so much mate! Even from the future you are so much help! Much love from New Zealand!

[@bjohnsonxar]

Worked like a charm! I used the cloth that typically comes with a pair of sunglasses you.

[@Geekdad]

You saved a weekend getaway with this fix! Thank you so much!

[@nyambumiano]

Thank you so much for this info, it worked for me.

[@seair732]

Thanks for helping! I was about to go to a camera store to get it checked, but when i followed these steps it really helped! Still sad because i couldve had nice pics but it kept having errors, its okay now, thank you! 😅

[@Charger425]

Had this very issue last weekend. My (brand new) Canon EOS 80d stopped communicating with my (brand new) Sigma 18-300 zoom. More likely to be the pins aren't making full contact because the Sigma zoom ring is very stiff; it's a known thing with this lens apparently. So probably when I'm zooming back and forth, it's maybe pulling the pins and contacts very slightly out of alignment. Less likely to be dirt or foreign debris as the lens and camera were mated in the shop when I bought them. A good tip. Thanks. Will give it a try should it happen again.

[@maryhyland5704]

I get this error on occasion, but when I do get the error it is almost always at the most inopportune times. I can usually resolve the issue by wiping down the contacts with a lens cloth but your statement of this happening because of the oils on my skin blocking the contacts has me curious, how exactly does oil from my hands cause this to happen when I have never actually touched that part of the camera with my hands or fingers? I have always been super careful to not only make sure that contacts are never touched I also take extra precaution while changing lenses to make sure nothing falls into the body of the camera.

[@The.Orchard]

I can't believe it was this simple. Thanks!

[@oyishomaemmanuel6001]

Couldn't take photos for two consecutive services because of this. Now it works just fine. Thanks guys

[@lensprotogo]

Ahh bummed to hear the but glad this helped you out!

[@willparsons32]

Interesting video.... So what if the lens has a very tiny bit of play once the "click" has been established when installing the lens?

[@ellam1121]

first solution i've found that wasn't just trying to sell me something, thanks

[@ImMrWillJohnson]

I have a Sigma Lens connect to a GH4 with a Metabones, and when I lock the lens in place, I get an error saying that it can't connect to the lens. When I twist the lens just a little, as if I'm about to take it off, the camera and the lens works fine. I have a different lens that I have tried, and they all lock and work fine in this configuration. It looks like I need to send in my lens for repair. Any other suggestions?

[@gehrybianca]

It worked perfectly on my baby 24-105L! Thank You!

[@ericv6963]

Nice, I was cleaning my contacts with alcohol and a q-tip, just used a cloth and a little elbow grease and IT WORKS!!!

[@blake3474]

Did you actually use elbow grease or just a half second brush over with the cloth

[@ashishsanglikar6614]

Thank u so much... For such a wonderful information

[@CatKin76]

It seems to have worked so far, thankyou :-) we'll see what happens

[@MyaQueenDigital]

Thank you very much. Thanks to you, I have solved the problem with my camera.

[@pentulukenari1M]

Thanks 👍🏼👍🏼

[@linking-it]

sigma 70 x 300 works on my canon 600d but not on my canon 80d err 01 . So problem is more then just a wipe over, Good video.

[@paulking9880]

Have you tried using the widest aperture on the 80D before firing a shot? This works for me on the M50 II

[@stefkerek5352]

Thank you SO much! I had a stuck pin! i pushed it in all the way and it popped out!

[@BENNY9460]

Thank you Very Much, you really saved Me with this fix! And it Really Works

[@clairsison99]

Thank you! I should have search for this video, years ago.

[@curtisbrown8505]

You literally saved me! I was about to throw this lens out and get a new one!!! Thank you, Rockstar!

[@insightfullearning1071]

Thank God! Yes soft cloth solved the issue! 🙏🏻

[@mattque2191]

Even though i tried already, after watching the video and trying again the problem was solved!

[@whatkimpicked]

Thank you - that made so much sense and was explained so well

[@michael_on_it]

You’re a savior😭❤️❤️

[@pelle9734]

Very useful video, thanks!

[@JoseWolff]

thanks! worked for me, it did require several cleaning tries, after like 5 times it worked

[@mhanuel4652]

This is a big help thank you very much

[@jonilill2010]

Perfect directions! Thank you! Works like new again!

[@marielo1081]

Thank you so much! I appreciate it! ❤️🤞🏻

[@diegomartino]

Do you know what that error is called? scheduled obsolescence. That error has no solution and has nothing to do with the lens or contact cleaning. I have several lenses that work fine with other cameras but they don't work with my canon 5D Mark III with Err 01. Service is more expensive than a new camera.

[@lisamedeiros9365]

Thank you so much, I encountered this problem, and this recommendation worked. You just saved me over $1500 for a new lens. Much appreciated!

[@MrMika532]

Also worked for me! But in my case you have wipe it a bit longer and repeat it after about 50 shots. Thank you very much!

[@ChampGirl]

Hooray!! Thanks for saving me $$ so I could fix this error myself!!

[@_MDR4]

AMAZING VIDEO OF INFORMATION!! I DESPERATELY NEED!!

[@vipinkm7722]

Thank u so much sir.. it really worked ❤️

[@spiderplex]

I'm getting the communication error with only 1 camera body and only 1 lens (5Dm4 & Sigma 28mm) -- the lens works fine on a different camera & other lenses work fine on the 5D --- any ideas?

[@WorkOutASMRGardening]

This worked for me. Thank you so much!!!

[@DeyvsonMoutinhoCaliman]

Many times you only need to twist the lens on the mount a little for the connections to form correctly.

[@TXPZ998]

this is what saved me thank, you sir

[@gabralalala]

you absolute life saver i love you for this thank you

[@laahinvlogs3815]

Worked for me better than expected tbh.

[@timtaylor1999]

It was weird. It did not work for me either. But what I did was have the camera on on auto with the lens on and the lens on manual and started playing with the ring by zooming in and overturning the ring 25 percent and then taking a picture. Zooming out all the way and zooming in completely and turning the ring 50 percent and took another picture. I did the same steps until I got to 150 percent and the camera lens started working. Hope this helps.

[@Anaxxo]

And it worked normally after ? I am getting this ER 01 error when using my 24 - 70 with flash at wide angle 24 mm to 28 mm maybe, I believe its due to some damage occurred to my lens after a fall, will try your solution hope it works.

[@zucledesma]

Oh my! It worked! Thanks!

[@jimbarchuk]

Excellent video. Two comments. First, 'cloth' should mean 'freshly washed, non-'fabric softener'' but otherwise well used 100% COTTON t-shirt. Paper towels are made from wood, which is poison to gold contacts. Fabric softener leaves residue. Non freshly washed will have body oils which are leave residue. Synthetic cloth is plastic and can be abrasive. Second, solvent really shouldn't be necessary, but if you have to the only One True Solvent is grain alcohol. All others leave residue. I know this sounds super extreme but these contacts are super sensitive. Pencil eraser, might as well use 220 grit sandpaper, followed by throwing the lens in the garbage. The WD-40 mentioned made my neurons absolutely cringe OMFG!! BTW the worst effect of residue is not just that it is an insulator, but that it collects dust/pollen/micro size smoke particles from the air.

[@КБР007]

Thanks for the useful information!

[@kggamer9455]

Good job sir.

[@cyytheboss9395]

thanks for the comment! I have a little question, would microfiber cloth be alright as an alternative? I have quite a number at home with my spectacle cases so I was wondering if they work fine as well.

[@tehakunkun2665]

Thanks for this ..i did it n solve the problem😊

[@j.williams2735]

I have a Tamron 18-200mm, canon mount with this issue. General camera repair in Pasadena couldn't fix it. Any suggestions?

[@mhhossain4385]

bro i have same probleem

[@k76.02]

Same problem here

[@Rafiqdanewallia]

just bought the tamron 16-300 lens, only have this problem when shooting long exposure. when using stock lens its fine!!!

[@canuckowl]

I get this message but only in Av or TV mode. Otherwise it works normally?

[@bellaluvv5979]

IT WORKED FOR ME!! Thank you so much, lifesavers.

[@nicoleevans4973]

Thank You ! This worked for me.

[@lensprotogo]

Great!

[@desireenichole_]

Worked for me!!! Thank you so much

[@Rrez.]

thank u man, god bless u❤

[@MatthewM.-it3yu]

This isnt helping. What is the best cleaner to use on contacts?

[@simonerhimuart465]

This is just a first class solution. Thank you very much!

[@dennismacalindong2803]

It worked. Thanks dude :D

[@RepinReal]

got a sigma 24mm and had the same problem from the start, but couldnt figure out whats wrong, turns out you need to ulock the lens and twist it back just a smidge for some reason the contancs are not connecting on full lock

[@ZaberAnsaryOfficial]

Hi, I think I put my 24mm stm in my backpack and might've bumped it a little, it's not even getting recognised by the 70D now... Aperture shows 00, no motor sound inside lens, AF-MF doesnt change anything and Err 01 when trying to shoot. Any idea?

[@ValaPeter]

Hi, I have the same problem. Do you have solution yet?

[@549_nagarkrishna9]

During cleaning the contact, one of camera body contact is pressed inside, (fixed inside) going not come to release(outside) so how to release camera body contact????????

[@mazidesmond]

Thank you so much, this was really helpful

[@DAedits.]

My lens kit thread broken a little and it's showing the same what should I do?

[@alanDESUUU]

Exactly what I needed. Thank you so much!!!

[@gloryb-tv]

It worked! Thanks!

[@Carbon_F]

You saved my Canon eos 90d🎉🎉🎉🎉🎉🎉🎉🎉

[@rianma5523]

Omg it worked thank you☺️

[@iano4342]

Worked! Thanks

[@doksicreate]

Thank you so much ! it really works

[@Stevenbiita]

Why my 50mm lens fail to capture at view finder in canon 5d mark ii

[@skykink]

Cleaning did not work and local repair facility said there was a communications unit that needed to be replaced in my Canon 100-400 lens. Got it home and I still got the error after a few shots. Mine is always intermittent. I can shoot for about 15 minutes and it will start. Either powering the camera on and off a couple of times or remounting the lens gets it to work for awhile. Not sure where to turn now in that I cannot imagine what else can be done.

[@mytube7071]

Oh boy you helped me to save my pocket money that iwas going to spend for just this problem Thanks alot man

[@anettebianca6855]

100% thank you so much! ♥

[@james7rr23]

oh my god thank you so much. This actually just saved my trip

[@سفير_مفسري_الأحلام]

I tried what you talked about and the lens still does not work. Please reply

[@GR1MRACER]

Mine only happens when my 70-300mm lens goes to about 200to300mm and then I get the error.

[@keo5365]

GR1M RACER same as mine

[@dzllz]

Same! This happened on my old Sigma 100-300 mm lens. I wonder why?

[@marianodavid2437]

Me too. Did you find a way to fix it???

[@joecap2919]

It means the contact ribbon inside your lens is split. You will need a repair.

[@stefanszlobodnik]

exactly, this happens only with my 70-300 Tamron lens.

[@bartosky20]

Thank you very much !!!

[@KuyaWewe]

thank you so much it works for me too !!!!!

[@son0flaw366]

What a relief! My 300f/4 X 7Dmii rig was malfunctioning while photographing a great gray I spent all summer looking for.

[@mirobalic3613]

Greetings! I have a Canon R3, so far it has happened that the display says busy. I can't turn off the device, I simply had to remove the battery and everything worked fine, and then after 2 months the same thing and a few days ago the same symptoms for the third time

[@JCPhotographyMallorca]

wow that worked thanks so much

[@paulking9880]

This problem only occurs with my 21-year-old Sigma 70-300 1:4-5.6 APO lens on a brand new M50 MkII using the Av mode with the aperture set at any value smaller than f4. Seems to be okay on Tv and P though.

[@ranoel12channel9]

Same with my tamron 70 300mm. Tsk

[@khmersong6286]

Hello,sir! Err iso 200 canon 750 d How could I do,sir? I hope you give me the answer. Thanks 🙏❤

[@ajaydogra2011]

Thanks, you saved my lens from being dumped into trash.

[@pradeepparida-jp6em]

It work for me my problems solved 🙏🙏🙏

[@Sara-tp6zd]

problem solved! thank you so much

[@mottavisuals]

I bought an used lens and the contacts were a little scatched, is there anything I could do to fix it?

[@Erik-z6v]

What if I use film era lenses, is there a fix/workaround?

[@alastairhansen7680]

My Canon 6d is having trouble with my Canon 100mm macro but it works with other lenses. I put the lens on my Canon 1100D and no problem.