Question about Canon EOS-1D Mark II Digital Camera

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Canon err 01

I have a cnon 1d mk2 and 5 d both have registered a error err01

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Re: canon err 01

This error means "Communication between the camera and lens is faulty. Clean the lens contacts." If you are using the same lens on both cameras, the problem is with the metal contacts on the rear of the lens where it communicates with the camera body. You can gently clean these contacts by using a clean pencil eraser. Make sure you hold the lens "bottom down" as you clean it so that the eraser debris falls to the table instead of inside the lens!

Posted on Dec 12, 2008

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I keep getting error 99 message and tells me to turn camera off then back on.

No solution on youtube for you? or is that only the Err01 Err 99 for the 17-85 IS lens?
That happens when the zoon lens got stuck.

Nov 02, 2013 | Canon Rebel Digital Cameras

1 Answer

I keep getting Err 01 and no photo is taken what do I do?

ERR 01 is a lens to body communication error. Clean the lens and body contacts (put a small amount of alcohol on a Q-tip - do not use rubbing alcohol!!!). Try again. If that doesn't work, problem may be in lens or body. Using the flat of your fingernail, push in the contacts on the body inside the mirror box to clean any tarnishing between the contacts the the circuit (they are spring loaded). Try another lens - if the other lens works, then your problem is in the first lens. If it still gives the ERR 01 code then the problem is in the body.

Has the camera been impacted or had water/liquid spillage?

Sep 16, 2013 | Canon Rebel XT / EOS 350D Digital Camera

1 Answer

Error 01 in canon eos 5d

Err 01: Lens to body communication error
1.The camera to lens communication is somehow being interfered with could be a problem within the lens itself, possibly the camera body, or something as simple as a smudged fingerprint on the lens mount contacts,
2. Check the lens and the contacts
3. Also check below link if you need a canon eos 5d service manual


Apr 26, 2012 | Canon EOS 40D Digital Camera

2 Answers

What does error 01 mean

Error 01: A communication problem between the lens and the body. Try cleaning the the area between the objective/Lens and the body. If that doesn't work, try another lens. If that doesn't work, try the first lense in another body, and if that works, it's most likely the body that's broken.

Jul 29, 2010 | Canon Rebel XT / EOS 350D Digital Camera

1 Answer

Canon 400D I have an error code Err01 I have cleaned contacts between the camera and lens but still have the error code

I had the Error 01 message on my 400D
I changed the support battery ( CR 2016 3 V) which is placed inside the main battery compartment.
This did the trick.

Jan 18, 2010 | Canon EOS 40D Digital Camera

1 Answer

My Camera is Canon 40D with EFS 17-85mm lense. I am having 2 problems,1.when I zoom the lense at 85 at 'AF' it doesn't get the focus, some times it get focus but picture got blurred.2 after capturing some...

Your flex cable to the Iris is broken. Have a look at my gallery at I have the same symptoms. At 28 or 35mm it make work ok. try Av mode and f8 aperture to see if you get an err01 because the aperture does not move either.

Jan 02, 2010 | Canon EOS 40D Digital Camera

1 Answer

Error 99 on screen cant take picture intermitant

Error 99 is known as Abnormal Mirror operation. Follow the link for help;EOS-1D Mark III/EOS-1Ds Mark III: AF Accuracy Adjustment
EOS-1D Mark III/EOS-1Ds Mark III: Abnormal Mirror Operation (Err 99)

It should be noted that the AF accuracy adjustment advisory is in addition to the previous EOS-1D Mark III AF mirror adjustment service notice. Free repairs are being offered for customers affected by the "Err 99" mirror problem, and Canon is also providing free AF accuracy checks and adjustments for customers experiencing problems with soft focus when using any but the central AF point.

Finally, Canon Japan has published a new manual entitled "EOS-1D Mark III AI Servo Auto Focus Manual" aimed at helping owners understand and get the most from their AF system.

Jan 01, 2010 | Canon Digital Cameras

1 Answer

Canon EOS-1D won't save pix to CF card. G.

The E99 message usually ends up being a shutter box that needs to be replaced. The 1D shutter box should be good for 100,000 images or more, you can probably find the estimated lifespan on Google somewhere.

If you can"t save pics to the CF card then you might have a bent or broken pin on your CF card reader. Look down into the CF slot, does it look ok?

We are an online digital camera repair shop but we haven't done any 1D cameras before.

Thomas D,
Owner; Darntoothysam com

Oct 02, 2009 | Canon EOS-1D Mark II Digital Camera

1 Answer

ERR 01

Try remove the lens, it may be faulty.

Apr 01, 2009 | Canon Rebel XT / EOS 350D Digital Camera

1 Answer

AF and shutter release failure

There was a lot of discussion of this when the Mk II was new. Many people "fixed" it doing just the things you did. Also, some reported that mounting the lens on another camera "fixed" it. IIRC, in the end it ended up being a lens issue. IS module. Canon can repair.

Mar 19, 2007 | Canon EOS-1D Mark II Digital Camera

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