5DIII light leak confirmed by Canon

Started Apr 13, 2012 | Discussions
x-vision
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5DIII light leak confirmed by Canon
Apr 13, 2012

Well, I guess that settles it:

http://www.usa.canon.com/cusa/support/consumer?pageKeyCode=prdAdvDetail&docId=0901e02480538fc7

Phenomenon

In extremely dark environments, if the LCD panel illuminates, the displayed exposure value may change as a result of the AE sensor’s detection of light from the LCD panel.

Affected Product *

Canon EOS 5D Mark III Digital SLR Camera

*If your $3500 copy doesn't have it, you are likely not using a genuine Canon 5DIII (:grin:).

Kudos to Canon, though, for acknowledging the issue so fast.

Canon EOS 5D Mark III
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JaXen
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Re: 5DIII light leak confirmed by Canon
In reply to x-vision, Apr 13, 2012

I hope the fix isn't something akin to shutting off the LCD light when the shutter button is pressed.

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SpartanWarrior
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Re: 5DIII light leak confirmed by Canon
In reply to JaXen, Apr 13, 2012

Will they be able to solve it with firmware update?
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ronm2008
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Re: 5DIII light leak confirmed by Canon
In reply to SpartanWarrior, Apr 13, 2012

I doubt a firmware update will fix it. Maybe this is the potential "recall" that was talked about on Canonrumors.

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JaXen
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Re: 5DIII light leak confirmed by Canon
In reply to ronm2008, Apr 13, 2012

ronm2008 wrote:

I doubt a firmware update will fix it. Maybe this is the potential "recall" that was talked about on Canonrumors.

Notice that they don't describe it as a light leak?

With the words they chose to describe the issue, FW update could certainly "fix" it.

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Apewithacamera
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Back of lens cap photographers may be affected. nt
In reply to x-vision, Apr 13, 2012

no text

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Fog Maker
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Re: 5DIII light leak confirmed by Canon
In reply to x-vision, Apr 13, 2012

The funny thing is how some forum clowns have tried to

say that the same phenomena occurs in their 5D II's and other models they probably don't even own.

What take some people?

I tried for over a week with no sign of leak. lol

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cs hauser
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countermeasures?
In reply to x-vision, Apr 13, 2012

CANON wrote:

Phenomenon

In extremely dark environments, if the LCD panel illuminates, the displayed exposure value may change as a result of the AE sensor’s detection of light from the LCD panel.

Affected Product
Canon EOS 5D Mark III Digital SLR Camera

Canon is now examining the countermeasures and once the countermeasures are decided, we will post the information on our Web site.

The countermeasure is to NOT shoot your camera with the lens cap on.

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Fog Maker
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Re: 5DIII light leak confirmed by Canon
In reply to JaXen, Apr 13, 2012

JaXen wrote:

Notice that they don't describe it as a light leak?

With the words they chose to describe the issue, FW update could certainly "fix" it.

No way.

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Dylthedog
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New dictionary definition of phenomenon
In reply to x-vision, Apr 13, 2012

It now means 'design fault'

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Fog Maker
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Re: New dictionary definition of phenomenon
In reply to Dylthedog, Apr 13, 2012

Dylthedog wrote:

It now means 'design fault'

so true

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El Puma
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Leak confirmed in mine
In reply to Fog Maker, Apr 13, 2012

I confirmed that mine leaks light. It still takes beautiful images. I'll wait to see what the resolution to the issue is from CUSA. Still have my 5DMII backup that I can use while it gets retrofitted by the service dept.

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DotCom Editor
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Now you know why the 5D3 is $3499
In reply to x-vision, Apr 13, 2012

The 5D3 is much more expensive than the 5D2 that it replaces because Canon calculated in the cost of -- at least -- one worldwide recall. That's expensive, but we are the ones bearing the cost.

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OpieSF
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Re: 5DIII light leak confirmed by Canon
In reply to x-vision, Apr 13, 2012

I'll certainly eat my words.

Even though I cannot personally replicate this issue good on Canon for stepping up to address.

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dswcamera
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Canon's fix will be
In reply to x-vision, Apr 13, 2012

A more opaque lens cap
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just a bad idea' ... me

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vincent__l
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Re: Canon's fix will be
In reply to dswcamera, Apr 13, 2012

The most simple, cost effective, and fool proof fix is to add a piece of electrical tape below the top LCD. As the lensrentals tear down shows Canon is already using tape everywhere to provide extra protection for the circuit boards. They just need to add one more step in the assembly process to cover up the bottom of the LCD to seal off the light leakage.

Of course this creates a problem because the new cameras would have the fix while existing users still need to be taken care of. Having to disassemble every 5DIII in the field could be quite expensive.

Creating a firmware fix to correct for using the backlight fixes one issue but still leaves the ambient light leakage "problem." However, this would be the cheapest solution for Canon, hence the careful working of the advisory.

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DotCom Editor
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You know this for a fact?
In reply to dswcamera, Apr 13, 2012

dswcamera wrote:

[Canon's fix will be] A more opaque lens cap

Do you know this for a fact? If not, why are you presenting this as fact?

Furthermore, the word "opaque" is an absolute. Something is either opaque, or it is not. There are no degrees of opaqueness -- something can not ever be "more opaque." Perhaps you should think things through before making frivolous statements in a public forum.

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kev wilson
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Re: You know this for a fact?
In reply to DotCom Editor, Apr 13, 2012

Furthermore, the word "opaque" is an absolute. Something is either opaque, or it is not. There are no degrees of opaqueness -- something can not ever be "more opaque." Perhaps you should think things through before making frivolous statements in a public forum.

not true opaque has vary degrees try wikipedia

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michaelcheddar
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Re: You know this for a fact?
In reply to DotCom Editor, Apr 13, 2012

Chill man, the dude was being either funny or sarcastic.

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stephenmelvin
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the interesting thing...
In reply to x-vision, Apr 13, 2012

The thing I find most interesting is that Canon is addressing what to me seems to be an extremely minor issue while as far as I know, Nikon hasn't said anything about the various issues with the D800.

Canon seems to have gotten a lot more aggressive about these things. They've apparently learned their lesson from the 1D III fiasco.

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