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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 01 Apr 2011 (Friday) 00:17
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85L drained my batteries so fast!

 
imboyster
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Apr 01, 2011 00:17 |  #1

I borrowed my friend's 85L to test how remarkable the lens is but after a few shots, my 40D turned off and appeared that the batteries are low. So i replaced it with a fully charged battery and after some 20 shots it drained again. Is there an explanation for this?


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Oz ­ Visuals
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Apr 01, 2011 00:34 |  #2

Man I've never heard of such a thing


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imboyster
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Apr 01, 2011 00:46 |  #3

Oz Visuals wrote in post #12136028 (external link)
Man I've never heard of such a thing

Try google.


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wilykat
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Apr 01, 2011 00:48 |  #4

When was those batteries last charged? If it's been a few months or so, it may have self drained down to almost nothing.

Also older batteries (more than a few years old) tended to lose the capacity over time and may not be able to handle high current device as well.

If your batteries were charged recently and are not that old, then I have no idea. I haven't heard of batteries draining to dead in a few shots.




  
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Todd ­ Lambert
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Apr 01, 2011 00:49 |  #5

It's a big hunk of glass, but that would be ridiculous. ;-)a

I have not problems with mine either - can shoot until the cows come home. Love the new batteries!




  
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00dahc
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Apr 01, 2011 00:50 |  #6

Ha, no.


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Velorium
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Apr 01, 2011 00:51 |  #7

imboyster wrote in post #12136095 (external link)
Try google.

If you're going to be condescending then try Google yourself for an explanation.




  
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yogestee
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Apr 01, 2011 00:54 as a reply to  @ Velorium's post |  #8

How old are your batteries?


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Apr 01, 2011 00:54 |  #9

Huh...thats weird...

But if it was the battery id assume he'd have problems with other lenses, it was just with the 85L right?


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sol95
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Apr 01, 2011 00:58 |  #10

This has never happened with my 85L and 5Dii


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imboyster
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Apr 01, 2011 00:59 |  #11

Actually both of my batteries are fully charged. There are a lot of the same problems i found in Google but there were no definite answers. They say it's because of the firmware, but mine is up to date. Funny because when i switched to another lens, the batteries are full again.

So it means it's an isolated case. It only happens on a 40D with an 85L.


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imboyster
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Apr 01, 2011 01:00 |  #12

sol95 wrote in post #12136147 (external link)
This has never happened with my 85L and 5Dii

It's currently attached to a 5D classic, there are no problems whatsoever. It's only when i attach it to a 40D.


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imboyster
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Apr 01, 2011 01:01 |  #13

yogestee wrote in post #12136129 (external link)
How old are your batteries?

Just ordered an original copy a few months back so i have two original batts.


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Velorium
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Apr 01, 2011 01:01 |  #14

imboyster wrote in post #12136154 (external link)
Actually both of my batteries are fully charged. There are a lot of the same problems i found in Google but there were no definite answers. They say it's because of the firmware, but mine is up to date. Funny because when i switched to another lens, the batteries are full again.

So it means it's an isolated case. It only happens on a 40D with an 85L.

If this is the case it sounds like the solution would be to email Canon about the potential bug and/or send in your 40D + lens so they can hopefully fix/assess the issue. You could also try re-flashing your firmware.




  
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imboyster
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Apr 01, 2011 01:02 |  #15

Velorium wrote in post #12136112 (external link)
If you're going to be condescending then try Google yourself for an explanation.

Don't worry, i did, and if you have nothing substantial to say, just ignore my post.

Thanks


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85L drained my batteries so fast!
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