What a bunch of crap responses in this thread. If this were your camera you'd be anxious too, especially after the 1D3 problems. Really, if you can't contribute anything useful why just not refrain from reacting. This forum really is going down the drain.

To the OP: I don't have a 5D2 yet but will follow the issue. Thanks for bringing it up.

JFB318 wrote:
It appears, from other forums I have read, that several folks have found this same problem with their 1DSmkIII as well

I discovered this completely accidentally this morning, but this is actually visible in the 1Ds MkIII sample images. If you download the village scene, there are some blown highlights about a quarter in from the bottom that exhibit the same problem.

At 1/200 and ISO 100, it shouldn't be a dark frame subtraction artifact, either.

On the other hand, at one pixel wide, it's not going to have any considerable impact on print or typical screen viewing.

colinm wrote:
JFB318 wrote:
It appears, from other forums I have read, that several folks have found this same problem with their 1DSmkIII as well

I discovered this completely accidentally this morning, but this is actually visible in the 1Ds MkIII sample images. If you download the village scene, there are some blown highlights about a quarter in from the bottom that exhibit the same problem.

At 1/200 and ISO 100, it shouldn't be a dark frame subtraction artifact, either.

On the other hand, at one pixel wide, it's not going to have any considerable impact on print or typical screen viewing.

I see what you mean, but is so minor that I would not even bother with it.

The thing that worries me is that it could be related to the changes they did to the gain amplifier to squeeze lower noise from the 5dmk2.

I really hope that canon will decide to fix it soon their reputation will go down the drain if not.

Rubber Soul wrote:
davenfl wrote:
We are going to begin a panic over the inability of the camera to handle terribly blown unusable photos when shots anywhere close to normal exposure are perfect. I agree with Mattbn and Monochrome, truly laughable.



Mattbtn wrote:
Word on the street is that if you actually connect the black dots on these blown out shots, it actually spells out "Learn how to use your camera."




Hey.Underpants wrote:
It's always the cameras fault.

^^ Start a new thread so it doesn't get lost.

ivanshusky wrote:
I have posted something similar with two 1D2N bodies I used to own. Canon could never fix it, had to sell them in the end.

http://www.fredmiranda.com/forum/topic/597080/



Thanks!


That's the thread I was thinking of.

So, this is apprently a spill over of photons from the capture diode... Which is interesting really... I can't see why it couldn't be 'repaired' in firmware or Raw processing, pending data from the raw file capture.

I saw your 1D2 problem a while back Ivan, but I don't think they're quite the same. Where these black dots are appearing in highlighted regions, your blackened area's appear to be complete shadows. I certainly don't know what it is, but it doesn't bode well if it's a documented problem and hasn't had any kind of resolution since.

Kagetsu wrote:
I saw your 1D2 problem a while back Ivan, but I don't think they're quite the same. Where these black dots are appearing in highlighted regions, your blackened area's appear to be complete shadows. I certainly don't know what it is, but it doesn't bode well if it's a documented problem and hasn't had any kind of resolution since.

I agree, the 5D2 problem might not be the same as the 1D2N. Only Canon engineers would know for sure though. Just hope they can find a fix for the both of them.

Is there more samples from 5D2 with this problem that can be posted here for us to have a better look?

Does the 5D MK II issue occur when processing RAW files using DPP Neutral, with all NR and other processing junk off, etc.?

EBH

I have checked quite a few 1DS3 images and I can see no evidence of this on my camera. I will try to find the time to post samples, but it is not there...

I've not seen the infamous black dots with any Canon body yet, but I only shoot RAW and convert with DPP.

EBH

It appears in RAW files, even at low ISO, and even with Lighting Optimizer, Long exposure noise reduction, High ISO speed noise reduction, and Highlight tone priority all disabled. It isn't a huge issue for my type of shooting, but a fix would be nice and I would be surprised if something isn't in the works to address this. I am confident that Canon will do the right thing on this. Eventually.

These JPGs are from a RAW shot at ISO 400, 1/30 at 8.0 with the 24-105 L:
( First one just for reference as to the enlarged area)

Montpelier Capital

Detail at 100%

You may have to enlarge the detail shot to 200-300% to see the Darth Pixels in all their hideous glory!

Well, something different. This seems to be minimal, some black dots/lines on the right side of highlights - but limited to the upper right areas.

Mike V wrote:
ivanshusky wrote:
I have posted something similar with two 1D2N bodies I used to own. Canon could never fix it, had to sell them in the end.

http://www.fredmiranda.com/forum/topic/597080/



Thanks!


That's the thread I was thinking of.




I remembered this 1D2N thread and was going to post it here, but looking closely at these 1D2N shadows I came to the conclusion that this must be some different phenomena. In these 1DMarkII images:

1. Some of the "shadows" are completely separated from the light source.
2. These shadows have the same shape as the light source
3. These shadows occur above the image - not to the right

- Gene

kevin2i wrote:
Not good for christmas lights. Canon forgot the "Christmas tree mode" on the the 5dII.
the iso50 is not bad (just a few dots) but the iso200 is very noticeable. 100% crop. 85L/1.2

Do you have any normal shots, something that you would actually want to print, that shows this problem?

Rubber Soul wrote:
Here is a damning sample that shows how bad it can get.



Those aren't dots....just people heads looking out the windows

GeneO wrote:
I remembered this 1D2N thread and was going to post it here, but looking closely at these 1D2N shadows I came to the conclusion that this must be some different phenomena. In these 1DMarkII images:

1. Some of the "shadows" are completely separated from the light source.
2. These shadows have the same shape as the light source
3. These shadows occur above the image - not to the right

- Gene



They are above the image because the shots are portrait, I think they are actually to the right when the camera is landscape as per the 5D MK II shots?

Mike V wrote:
GeneO wrote:
I remembered this 1D2N thread and was going to post it here, but looking closely at these 1D2N shadows I came to the conclusion that this must be some different phenomena. In these 1DMarkII images:

1. Some of the "shadows" are completely separated from the light source.
2. These shadows have the same shape as the light source
3. These shadows occur above the image - not to the right

- Gene



They are above the image because the shots are portrait, I think they are actually to the right when the camera is landscape as per the 5D MK II shots?



Ah, duh. well take away one of my points (with a 50% probability they are to the left ?)

A Canon statement is supposedly coming...

Link