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Archive 2012 · Canon 5D Mark III Light Leak?

  
 
akovacsi
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p.1 #1 · Canon 5D Mark III Light Leak?


I was hoping to get the 5D Mk III - but a few hour ago all hell broke loose. Forums after forums with unusual behaviour on the body and light leakage and messed up exposure.

info: http://www.canonrumors.com/forum/index.php?topic=5462.0

Anyone know what is going on here? Is this for all 5D Mk III batches, or certain serials?

Kinda scary when you think about it - spend $3500 and end up with a product with exposure issues...

I am going to wait until this thing is going to get resolved or know WTF is going on...



Apr 07, 2012 at 07:56 PM
Ben Horne
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p.1 #2 · Canon 5D Mark III Light Leak?


There are already some threads on this topic. If you read though them, you'll see that it's a non issue, and that many of the other canon cameras exhibit the same behavior.


Apr 07, 2012 at 08:14 PM
stanj
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p.1 #3 · Canon 5D Mark III Light Leak?


https://www.fredmiranda.com/forum/topic/1102400


Apr 07, 2012 at 08:36 PM
thw2
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p.1 #4 · Canon 5D Mark III Light Leak?


Didn't the Koreans kick up a big fuss (street demonstration?) over the 1D3 AF fiasco? There must be some serious anti-Canon fanboys there.


Apr 07, 2012 at 09:57 PM
AGeoJO
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p.1 #5 · Canon 5D Mark III Light Leak?


Followed by rioting on the street, too, I understood .


Apr 07, 2012 at 10:11 PM
Photon
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p.1 #6 · Canon 5D Mark III Light Leak?


Don't point fingers at just one group. I think we had every possible subculture of photographers going nuts over the 1D3 AF, especially long after the production changes (blue dot, etc.).


Apr 07, 2012 at 10:14 PM
Chad S
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p.1 #7 · Canon 5D Mark III Light Leak?


Now I have to see if my 5D3 will fit in the blender. It was brilliant until I saw this thread.




(this useless thread)



Apr 07, 2012 at 10:26 PM
hanak347
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p.1 #8 · Canon 5D Mark III Light Leak?


this is the issue. we are paying... well we are asked to pay 3500 dollars for a camera. and as a customer, i think we have the right to tell canon that we deserved to have the equpitment with no flaws for the amout we are paying.


Apr 08, 2012 at 12:37 AM
Netgarden
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p.1 #9 · Canon 5D Mark III Light Leak?


I agree, Hanak. Personally, I'm thinking the file sizes are so huge now, we have to expect more flaws showing up in a not-so-perfect setting, not so perfect sensor.


Apr 08, 2012 at 12:53 AM
digitalbug30d
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p.1 #10 · Canon 5D Mark III Light Leak?


OMG..like wow


Apr 08, 2012 at 01:00 AM
Gochugogi
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p.1 #11 · Canon 5D Mark III Light Leak?


hanak347 wrote:
this is the issue. we are paying... well we are asked to pay 3500 dollars for a camera. and as a customer, i think we have the right to tell canon that we deserved to have the equpitment with no flaws for the amout we are paying.


And how brother! We lens and body cap shooters deserve respect and blackest blacks!



Apr 08, 2012 at 01:05 AM
lacksative
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p.1 #12 · Canon 5D Mark III Light Leak?


Too bad for all those lens cap shooters out there.


Apr 08, 2012 at 02:24 AM
HD Cam Team
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p.1 #13 · Canon 5D Mark III Light Leak?


I posted it in the other thread, but I think we should take it a bit more seriously. Those who have paid $3,500 for a body-only camera won't be so happy with this issue...

For the records: the 5D Mark II does NOT have this issue. I have thoroughly tested it.

I think we should thank to those who discover instead of joking about them.

I added some videos showing the metering system is affected not only by the top LCD, but also when shooting under bright light (sun, etc) in this post:

http://www.hdcamteam.com/2012/04/07/eos-5d-mark-iii-light-leak-issue/

It may be a slight issue when shooting outdoors without the lens cap on, but if it does happen with the lens cap (which shows it up more clearly), it will also happen without it. That's clear.

For a $3,500 body-only, I think everyone would expect this kind of issue NOT to happen...

Most cameras have issues that can be fixed via firmware update. I don't know if this can be fixed that way (I hope it can).

Anyway, I don't think we should accept it as "normal" when it clearly is not.

PS: @akovacsi : I would certainly wait a bit until this is fixed by Canon. A $3,500 is not a toy for most of us. Hopefully Canon will reply soon...



Apr 08, 2012 at 03:07 AM
sa2728
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p.1 #14 · Canon 5D Mark III Light Leak?


Hello,

I have just tested this at my EOS 5D Classic.

If I have the lens cape on and the camera is directed to a dark area, the metering system shows me 25 sec.
But if I just directed the camera to a light area the metering system shows me 5 sec.

This means for me there is some light comming through the lens cap itself.

--> But in both cases it does'nt matter whether I press the light on button or not.

Andreas




Apr 08, 2012 at 05:41 AM
jcolwell
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p.1 #15 · Canon 5D Mark III Light Leak?


hanak347 wrote:
this is the issue. we are paying... well we are asked to pay 3500 dollars for a camera. and as a customer, i think we have the right to tell canon that we deserved to have the equpitment with no flaws for the amout we are paying.


Have you ever bought a house?



Apr 08, 2012 at 06:36 AM
Fr3d
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p.1 #16 · Canon 5D Mark III Light Leak?


Did anyone actually try to shoot a picture in bright sunlight with and without covered
top lcd? Unless we see a difference in the shots the whole discussion is pretty much moot.



Apr 08, 2012 at 06:50 AM
arbitrage
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p.1 #17 · Canon 5D Mark III Light Leak?


And even then why would one care if the metering is taking into account that light then who cares if it is always doing it. It is not like we are covering it up. What about all the light coming through the viewfinder from behind, I've seen that throw off the metering a lot more than this does. And I very rarely use the top LCD light but it shuts itself off within a few seconds and you'd never touch it during a shot or even composing. Also no one meters at night for long exposures anyways. When I shoot Northern Lights I'm just using live view to get my exposure or trial and error. This really seems to be a non issue for actual photography. It also seems there are reports of all sorts of older Canon cameras with this problem now that people have done the test. That seems to imply this is not something to care about. I sure don't!!


Apr 08, 2012 at 08:32 AM
arbitrage
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p.1 #18 · Canon 5D Mark III Light Leak?


jcolwell wrote:
Have you ever bought a house?


+1, paying 3500 means nothing as to how perfect the thing is supposed to be.



Apr 08, 2012 at 08:33 AM
coranda
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p.1 #19 · Canon 5D Mark III Light Leak?


These lens cap on tests are ludicrous beyond belief. They involve light levels far beyond the meter's range of operation. The meter is designed to produce an image that is 18% grey. Does anyone seriously think that the meter reading in these tests, with or without the LCD light, are registering 18% grey.

Add to that the fact that the EV scale is non-linear and it's hard to see how a rational, informed person could get so hysterical about this. The quantity of light required to shift exposure by 1 stop at these levels becomes a tiny fraction of a stop at real exposure levels - probably less light than leaks into the viewfinder past your eye - and much much less if you happen to look through the viewfinder wearing glasses.



Apr 08, 2012 at 08:36 AM
timbop
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p.1 #20 · Canon 5D Mark III Light Leak?


HD Cam Team wrote:
I posted it in the other thread, but I think we should take it a bit more seriously. Those who have paid $3,500 for a body-only camera won't be so happy with this issue...

For the records: the 5D Mark II does NOT have this issue. I have thoroughly tested it.

I think we should thank to those who discover instead of joking about them.

I added some videos showing the metering system is affected not only by the top LCD, but also when shooting under bright light (sun, etc) in this post:

http://www.hdcamteam.com/2012/04/07/eos-5d-mark-iii-light-leak-issue/

It may be a slight issue when shooting outdoors
...Show more

I tiny amount of light that is only detectable when there is no other source is not a flaw. A tiny bit of light gets in through the viewfinder - but it is such a small amount compared to when the lens is actually able to let in light it is insignificant. INSIGNIFICANT.

There are a lot more important things you should worry about - you know, things like composition, framing, etc. Well, unless you only do lenscap photography



Apr 08, 2012 at 10:35 AM
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