Canon 6D with Canon 24-70mm USM IS lens - Error 1
Apr 8, 2020 13:47:49 #
Rsangha
Loc: Lynchburg, VA
I have a Canon 6D (with Canon EF 24-70mm F4L IS USM lens) that has been working fine for last 4 years. Then starting about a month ago started getting occasional Error 1 (failure of communications between camera and lens). Googled topic on YouTube and tried the recommended solution of cleaning the contacts on camera and lens - using a drop pf 77% alcohol. This fixed the problem for a few days - then same problem. So cleaned again but the Error 1 still persists. Noticed that it usually happens only when the lens is zoomed to 50 to 70mm.
Never when wide open at 24mm (at least so far). Anyone have any comments or suggestions?
Never when wide open at 24mm (at least so far). Anyone have any comments or suggestions?
Apr 8, 2020 14:01:01 #
Just thinking aloud here. On my canon not a 6d, the camera side of the lens contact pins are spring loaded while the lens side is not. So as the lens twists on the springs compress, making for a solid contact. If a spring is weak or stuck it won't push back enough. So maybe use something clean, example the edge of a credit card, to push those contacts in and out a few times in case some crud has caused them to stick in the in position and lose their springiness. Otherwise I'd think a repair is warranted.
Apr 8, 2020 14:09:13 #
Some mounts get sloppy from wear and then just a tiny bit out of position and the contact becomes bad, esp if the battery is low.
Does that lens have the plastic mounts? When I can I only get lenses with metal mounts, even if it is an older edition.
Does that lens have the plastic mounts? When I can I only get lenses with metal mounts, even if it is an older edition.
Apr 8, 2020 14:26:25 #
Rsangha wrote:
I have a Canon 6D (with Canon EF 24-70mm F4L IS US... (show quote)
Do you have another lens you can try to make sure that the problem is not with the camera? Other then that, if you have cleaned and inspected the contacts and everything seems in order and the problem persists then the next step would be to contact Canon Service or a trusted repair shop.
Apr 8, 2020 16:10:39 #
My advice is try several other telephoto lenses. Because it’s only doing it when the lens is extended most likely it’s a problem with that lens.
Apr 8, 2020 19:24:55 #
The 24-105 f4L version 1 had a known ribbon cable issue that showed up this way. Not sure if this might be similar, but interesting that it’s showing up when the lens is extended.
Apr 9, 2020 05:41:01 #
AK
Loc: Adelaide Hills, South Australia
Hi, just my two cents worth, that error for that lens usually indicates an aperture problem in the lens itself. Will cost to have it fixed.
Apr 9, 2020 06:53:23 #
Agree with the two previous responses, that ear Canon zooms have an aperture ribbon cable that, over time of extending in and out while zooming, can crack at their connections. Zoomed in, contact made. Zoom out, lost contact resulting in ERR 1. Or, it could be the power diaphragm unit that is causing it. Repair is needed if cleaning contacts doesn't help.
Apr 9, 2020 08:01:18 #
It sounds like the beginning of diaphragm failure and it will need to go in to be repaired I had that happen on my 24 to 70 version 1 also if I remember correctly it's about a $400 repair.
This is also a common issue with a 24 to 105 as they use the same diaphragm assembly
This is also a common issue with a 24 to 105 as they use the same diaphragm assembly
Apr 9, 2020 08:46:10 #
rjriggins11
Loc: Colorado Springs, CO
Rsangha wrote:
I have a Canon 6D (with Canon EF 24-70mm F4L IS US... (show quote)
Error 1 is a lens communication error usually dealing with the flexible cable that connects the diaphram assembly to the main circuit board in the lens. these will only flex so many times before they crack. Your tests prove this to be the problem.
Hi. My name is Rick. I’m the owner and lead technician at Discount Camera Repair and a member in good standing here at the UHH. I’ve been doing repairs for other members here at greatly discounted rates and would be glad to help.
I'd be more than happy to repair the lens for you and keep the cost as low as possible. If you’re interested, please respond by private message.
Apr 9, 2020 10:05:17 #
Rsangha wrote:
I have a Canon 6D (with Canon EF 24-70mm F4L IS US... (show quote)
The pins between the lens and the camera mount may not be making full contact. Check them and reconnect the lens a few times to free-up a possible sticky pin. A Q-tip with ever sooo slight amount of alcohol on it and wipe the accumulated dust from the contacts.. Do Not soak the tip nor allow liquids to enter the housings....hold the item upside-down while wiping to ensure that no fluids with soil enter the piece.
You could do more harm than good , otherwise.
Be careful please and good Luck
Apr 9, 2020 10:25:51 #
I was getting the same problem (6D but with 24-105 Lens. Other lenses did not show error). Assumed it was the lens. I went on line, found a mint condition lens (24-105L) for around the same price as the repair estimates. This is my most used lens, and happy to get a replacement.
Apr 9, 2020 11:43:08 #
I have a new (to me) 1DX that I've been using with my 28-135. My 28-300 is normally on my 1D. On my last shoot I took my 28-300 off the 1D and put it on the 1DX. I got the Error 1 message about every 5-10 clicks of the shutter! I found that turning the camera off and back on corrected it, but then it would happen again. The camera works fine with all my other lenses. And the lens works fine with all my other cameras. I don't mean to hijack your thread, but to simply quote a similar occurrence.
Apr 9, 2020 12:17:13 #
PGHphoto
Loc: Pittsburgh, PA
Rsangha wrote:
I have a Canon 6D (with Canon EF 24-70mm F4L IS US... (show quote)
As rjriggins11 said my suspicion is with some Canon lenses (don't have the list in front of me) there is a problem with the internal ribbon connector wearing out in the lens and when the lens is extended, the wires in the ribbon cable have a break in them. when the lens is not at max extension, the wires will touch and act as if not broken. If other lenses work, I would talk to Canon (or rjriggins11) and potentially send the lens for repair.
Since you said your lens works on other bodies though, not sure if this is the answer. Although keep in mind that older bodies may use slightly different interfaces and possibly not involve the wire that is broken.
good luck and let us know what you find
Apr 9, 2020 13:10:13 #
Just off the top of my head, it seems to be an internal cable problem of the lens. Had the same issue with the Canon 24-105. You need to send it in for repair. You can try to clean the lens contacts but it never worked for me.
WJH
WJH
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