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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses
Thread started 25 Nov 2009 (Wednesday) 17:56
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Canon L 100-400 lens error

 
dirtdiver
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All, I just got a canon L 100-400 lens from BH. I took about 100 pictures with it the other day and I got a handfull of instances where the focus/shutter would lock up and I would get a error message on myT1i. It said something about a communication error try cleaning the contacts and try again. The camera is a few months old and the lens is brand new. I would turn the camera off and it would work again. Any thoughts?

steve

Nov 25, 2009 17:56



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dmccabe
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banned

Sounds like dirty connections :) Did you try cleaning them with alcohol. You can use regular lens cleaner wraps too.

Nov 25, 2009 18:10

Canon 5D MK II | Canon 16-35 II [COLOR=red]L [COLOR=black]| Canon 70-200 [COLOR=red]L IS | [COLOR=#000000]Canon 50mm f1.2 L | Canon 580 EX II

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dirtdiver
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dmccabe wrote in post #9082492external link
Sounds like dirty connections :) Did you try cleaning them with alcohol. You can use regular lens cleaner wraps too.

I actually did not try to clean them thinking everything was new and factory clean. I still think that dirty is a stretch. Is this a common error?

Nov 25, 2009 18:14



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dirtdiver
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Also I have never had this error on any of my other lenses. steve

Nov 25, 2009 18:20 as a reply to dirtdiver's post 5 minutes earlier.



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tvphotog
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Call B&H and simply return it and exchange it for another. A new lens should not have dirty contact points, but check your camera's contacts. A simple pencil eraser should clean them. But if other lenses work with the body, it's the 100-400. If it's within 15 days and you have all the papers and wrappings, there will be no questions asked. That's the advantage of dealing with them.

Nov 25, 2009 18:47

Jay
Ireland in Word and Imageexternal link Jay Ben Imagesexternal link5D III | 5D II | 7D | Powershot S100 | 24-105L | 100-400 IIL | 16-35 f/2.8 IIL | 24 T/S f /3.5L II | 17 T/S f/4L | 50mm f/1.2L | 35mm f/1.4L | 70-200 f/2.8L II | 580 EX II | 600 EX-RT | Feisol 3441T/Markins Q3T lever QR | Gitzo 3542L Markins Qi20 BV-22 | Gitzo 5561T RRS MH-02

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Tdragone
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All metals that aren't 100% gold oxidize.. Even a newly bought lens' contacts could be slightly dirty.
use a soft pencil eraser on the lens contacts and then try again. If it still errors; then I agree to send it back.
My 50 1.4 doesn't get used as much as the 10-22 and my 16-55; so I get this occasionally.

Nov 27, 2009 12:46

-Tom Dragonetti
Spyder Holster + 1Dmk IV, 50D, G11
10-22, 16-35 2.8Lii, , 24-70 2.8Lii, 50mm 1.4,
70-200 2.8Lii IS, 100-400L IS
1.4x TC, 580EX ii, ST-E2

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Canon L 100-400 lens error
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