How to Repair BC Error on Canon EOS 1, EOS 1N, Three Possible Solutions (Solved)

[@miketurecek1883]

Photography And More thanks for this video. I bought this when it came out and put it away years ago thinking my battery was low. My daughter expressed interest in film cameras and having forgotten the error, I filmed up and then disappointed her when the error popped up. Researched the error in the manual and assumed I was in for a factory service. That would have run me $350. So this could not hurt I figured! And I was right, but more importantly you were right. I tapped the magnet and it fires away! Thanks so much!

[@photographyandmore]

Hello Mike, It's great know that you found useful this video, thanks for your comments!

[@derektimmons8255]

Clear message, clear structure, easy to understand, thank you

[@photographyandmore]

Hi Derek, It's great to know that you found this video useful. Thank you for your comments!

[@jonmullins8460]

Thanks for this. Mine was fixed by tapping on the magnets.

[@yitcvjrTmk4j9V2]

I have an EOS-3 with similar problems. I have the “b c” error, but my shutter still fires sometimes. It isn’t fully locked like others I’ve seen reported. So then I tried everything you said to try first in this video, but with no luck fixing it. Then I got some very strong neodymium magnets and tried to fix it without disassembling. I was able to get the shutter to fire fairly normally with the magnets stuck onto the camera, but as soon as I take the magnets off the camera then the shutter locks again. Then I tried leaving the magnet on the camera and I fired the shutter a couple of hundred times to see if that would unstick it. No success. Then I disassembled and tried both tapping on the shutter magnet quite rigorously and using the neodymium magnets directly on the shutter magnet and sadly the problem still remains and the problems are still the same as before, which is that it fires sometimes after multiple presses on the shutter. And if I put magnets in the right spot on top of the the shutter magnet from the outside then I can still get the shutter to fire multiple times continuously. So it sounds like my issue isn’t the standard problem since all the usual fixes have had no useful effect. I guess the problem is potentially more serious and probably not worth trying to fix from a cost perspective?

[@MickMod]

Thank you so much for this video! After trying the third method it seems to work better at least, but it still has the same error as before every 2-10 frames or so, but just pressing the shutter again works like normal. Any idea why this could be happening, and if there are any good solutions?

[@dankoons5577]

you video helped me a few days ago thanks. Do you have suggestions for a film wind issue? camera jams on frame 29, won't rewind or advance?

[@freyachandra1869]

This video is really good! Keep up the hard work and never lose your motivation to make your awesome youtube channel :)

[@photographyandmore]

Hi Freya Chandra, Thanks for your comments, it's great to know that you found it useful!

[@introspectiv3]

helped. thank you.

[@kevins5349]

Great video. Can you not disassemble the camera and instead tap the front plate in the same area as the magnets?

[@JohnFarnan]

Thanks for the video and thanks for the comment that said don’t disassemble just give it a dunt 😂😂 working again. Result

[@chriss4243]

For me it was my EOS-M42 adapter that was pushing up a small black pin on the left inside lens housing. Filed down one of the flanges on the adapter and no more bc error.

[@photographyandmore]

Hello Chris, Thanks for share with us your experience!

[@Edyn1211]

Hi, Chris S. I hope you'll see this message. I found your comment and this is what is giving me the error. However, my pin snapped off at some point from the same M42 adapter. Do you happen to know what position the pin is meant to be in and what to do about the adapter? I still have the pin (thankfully), I only need to reattach it. Many thanks if you can help me figure this out.

[@MrSamischris]

@@Edyn1211 hello. the black pin should be in the lower position. As for the EOS-M42 adapter I did not have a permanent solution even with filing the adapter down as I still have the bc error. It seems these EOS-1 models only like native lenses. Hope this helps..

[@Edyn1211]

@@MrSamischris The weird thing for me is that it shoots fine without a lens even with the broken pin. I will try to reattach it with some really strong glue and check if that helps, as it fired alright with the lens on before the pin broke off. I researched some forums from 2010, where one user suggested that the pin, when pushed into the upper position, tells the camera that a lens is mounted. My adapter has the chip as well, so the camera was even able to give me proper focus detection. The only thing that didn't work well with the chip was the aperture. The f/ number would flicker constantly and couldn't be properly set, so the metering would go crazy too, but that can be fixed by taking the chip off and metering separately. I will give an update once I fix the pin.

[@palmwaytech]

We have this camera , power is ok, buttons that you press to change setting , shutter button - everything works , just not with adapter and lens, it gets an error or the shutter release does not complete , the shutter gets stuck half way and doesnt complete process when you press shutter button.- then i have to press again so the shutter goes backup . it only goes back up when i press it the second times With out the lens / adapter on , it works / fuctions , all the buttons work. Will it work with a canon lens , i dont have a canon or eos compatible lens. Would it be the adapter / lens not comunication or is something damaged / not working. Thank you.

[@photographyandmore]

Hello QQwerty, I think it is best to first test the camera with a Canon EOS lens to see if it is the adapter or the camera that is failing.

[@chriss4243]

It's the EOS adapter. I had to file the flange down to stop it from pushing up the black little pin on the left side of the lens hosuing. Works now..

[@blippedyblop]

Any tips on fixing a T90?

[@Fmdk99]

Hi where i can get the back door replacement? Mine already broken

[@photographyandmore]

Hello Fk, Sometimes with a little luck you can find some used parts on eBay.

[@dzava]

Hi, I have got EOS 3 and I get the BC error message but not after I press the shutter button but right after I turn the camera on. The only time the LCD shows any info is when I gently depress the shutter button just a little down (not fully) otherwise it is always blinking. The camera was barely used. Is this something fixable? The camera doesnt make any sound at all. It just blinks this BC. Oh and the batteries are freshly bought 2 days ago.

[@huangyuchen6544]

Hi I have exactly the same issue with my eos3. Were you able to fix it by now? Thank you!

[@dzava]

@@huangyuchen6544 mine was not fixable due to damaged board circuit or chip and these parts were no longer produced. So I sold it and got me another one that was working.

[@Apercy021]

I get a bc error after the shutter fires and then it goes away when i half press. Anyone have a fix for that? I wont know if my camera is functioning until i develop my film tho

[@DavesFilmLab]

I have the same issue but the camera seems to expose the film just fine. Annoying still. Did you find a solution?

[@adamsowinski9729]

@@DavesFilmLab Same problem. do you know anything about this?

[@Azdak]

Has anyone attempted a full disassembly to clean the magnet? Is it easy/hard? Giving the magnet/camera a thump works for me but issues comes back every day or so. I'd love to attempt a more permanent solution

[@timklepper6398]

You don't have to disassemble the camera, just give a hard knock on the part at 7:53 What sucks is that my camera does this every time when I start shooting, If anyone knows a perminate solution please say how.

[@photographyandmore]

Hi Tim Klepper, Thanks for the tip. I hope someone can help us with the solution you need.

[@leeo.alexander2324]

You may have this issue fixed by now. I have a number of EOS-1(X) and there is a magnet inside, front left of body. That magnet needs to be cleaned. If you feel good about disasembling the body then it is an easy fix.

[@MyRealtorSean]

this comment worked for me. no disassembly, just removed lens, camera on, shutter button held down, struck using my tv remote increasing in strength til shutter action. thank you video author and this comment. cheers.

[@sergeysavin3201]

how did you do it can you share with me , thank you

[@riversky33]

Thank you! Very informative. Is BC error quite common in EOS 1/1N?

[@photographyandmore]

Hello riversky33, As far as I know, this error is not very common.

[@yskmotion3601]

Only if you don't use it for about 5-10 years, I just tapped mine with a TV remote just where the magnet is without opening it holding down the shutter

[@dzava]

@@yskmotion3601 how did your error look ? Mine just flashes BC and doesn’t make any sound. The only time display appears for a split second is when I very gently depress the shutter button just a tiny bit down (not fully)

[@yskmotion3601]

@@dzava mine was the same, eventually it'll appear after a while, i solved it by just taping a piece of magnet on the small circular dot under the shutter button but i think it messes with the shutter speed a bit, you just have to experiment and find the right magnet with the right strength

[@coastalbay4k]

Great job!!!

[@photographyandmore]

Hi Coastal Bay 4K, Thanks for your comments, this drives me to continue making videos about photography!

[@MoviesGalore254]

very helpful video..i subbed #469 and liked.

[@artyomkennedy8894]

nice camera, realy love it.

[@photographyandmore]

Hi Artyom kennedy, From my point of view it is one of the best cameras that have been made.

Is that shutter sound real or effect? i just want to know how its shutter sound thats why i am asking :)

[@photographyandmore]

Hi Cankat, It is the real shutter sound of this camera, maybe it sounds too loud because it is very close to the microphone that recorded the sound, but it is the real sound.

[@baimadji5830]

Hey, i didn't succeed... What am i doing wrong?

[@elijahspence6344]

Baim Adji i just bought one too, ifollowed every step in the video and it still didn’t work. Were you ever able to find a solution?

[@baimadji5830]

Elijah Spence i took it for repair shop canon in my country don’t have the replacement parts, so... nothing I can do about it. Sad really , i hope you can fix yours

[@elijahspence6344]

@@baimadji5830 sorry to hear that, i'll try that too. thank you for your help

[@Photosbytw]

If you remove the battery and leave it out(about 3 weeks)........the magnets will eventually separate......

[@photographyandmore]

Hello Terry, Thanks for the tip!

[@Bembeleke]

Nothing like a 1 series

[@ANGELUZM]

Buenaàaa