1DsMK11 locking up w/ 70-200 2.8

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Archive 2007 · 1DsMK11 locking up w/ 70-200 2.8

ugdog
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p.1 #1 · 1DsMK11 locking up w/ 70-200 2.8

My 1DsMark11 is locking up once in a while with a 70-200 2.8 is. When I shoot a frame the camera just locks. I turn off the camera remove and re-attach the lens and everything is ok. This doesn't happen with any other lens. Anyone have any idea what's going on>

thanks.
dan

Oct 13, 2007 at 09:17 AM

Ariel Bravy
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p.1 #2 · 1DsMK11 locking up w/ 70-200 2.8

The 70-200 2.8 IS locks up from time to time. You can clean the contacts with a pencil eraser (internet folklore. I've never tried it, but it supposedly works.) and that should help prevent further lockups.

Oct 13, 2007 at 09:19 AM

EB-1
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p.1 #3 · 1DsMK11 locking up w/ 70-200 2.8

IIRC a defective IS unit may cause lockups by intermittently drawing excessive current, particularly in the 70-200/2.8 IS and 100-400 IS.

EB

Oct 13, 2007 at 09:49 AM

ugdog
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p.1 #4 · 1DsMK11 locking up w/ 70-200 2.8

EB,

IIRC....what is that?

Oct 13, 2007 at 10:03 AM

Alan321
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p.1 #5 · 1DsMK11 locking up w/ 70-200 2.8

IIRC = If I Remember Correctly or If I Recall Correctly.

A number of FMers have had their 70-200 f/2.8 IS serviced because of the Err 99 problems and lockups, and ended up with new IS units. It seemed to be relatively common a couple of years ago but is rarely mentioned these days.

- Alan

Oct 13, 2007 at 01:28 PM

ugdog
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p.1 #6 · 1DsMK11 locking up w/ 70-200 2.8

Thanks for all the info!
Any idea what that service has cost in the past?

Oct 13, 2007 at 05:53 PM

sjms
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p.1 #7 · 1DsMK11 locking up w/ 70-200 2.8

Ariel Bravy wrote:
The 70-200 2.8 IS locks up from time to time. You can clean the contacts with a pencil eraser (internet folklore. I've never tried it, but it supposedly works.) and that should help prevent further lockups.

if you use a pinky eraser from your standard #2 pencil i will advise you that there is a chance of inducing even more problems as the eraser is of the abrasive type and can reduce that gold plating on the contact and allow oxidation of said contact over time. in short i wouldn't do that if i were you.

Oct 13, 2007 at 11:10 PM


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