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Help, Andrew: Extreme Noise/Artifacts in Blacks Using EOSHD "Vivid Skintone" Camera Profile - 1DX Mark II


Wayne C.
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Hi Andrew (and others),

Happy New Year!

First of all, I love your "Vivid Skintone" profile. It gives an amazing look. I was walking around today testing out my new 1DX Mark II, shooting 60fps 4K at 100 ISO, 1/125 shutter, at various F-stops, exposing properly for the well-lit parts of the frame. I noticed in every shot that, first of all the blacks are not really black but more of a grey (not a huge issue) and, most significantly, that all the "blacks" had extreme noise, loss of detail and what looks almost like compression artifacts (a big issue). I've attached three screenshots as examples, with cropped in versions showing some of the problem areas in the frames. These screenshots were taken of the full-quality footage straight out of the camera, so the noise is not due to and post-processing or further compression.

When you have a chance, would you please let me know whether this is normal? I'm worried that it is a defect in my camera's sensor. If it is an issue with my camera I need to make sure to return it before my 14-day return window runs out in a few days! If this doesn't mean my camera has a problem, is this outcome normal for the Vivid Skintone profile and is there anything I can do to work around the issue? For example, is there a better ISO you'd recommend shooting at that would get rid of this problem, or are there settings I can tweak in camera to prevent the problem?

I'm hoping it's just my inexperience with the Vivid Skintone profile and the 1DX Mark II.

I'd greatly appreciate your thoughts whenever you have a chance. THANK YOU!

All the best,

Wayne

Screen Shot 2016-12-31 at 5.00.01 PM copy.jpgScreen Shot 2016-12-31 at 5.00.01 PM copy CROP.jpgScreen Shot 2016-12-31 at 4.59.09 PM copy.jpgScreen Shot 2016-12-31 at 4.59.09 PM copy CROP.jpgScreen Shot 2016-12-31 at 4.59.27 PM copy.jpgScreen Shot 2016-12-31 at 4.59.27 PM copy CROP.png

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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EOSHD Pro Color 5 for Sony cameras EOSHD Z LOG for Nikon CamerasEOSHD C-LOG and Film Profiles for All Canon DSLRs

Got the footage.

So it's 4:2:2 M-JPEG with Matrix Coefficients of BT.601.  Why Canon would use BT.601 for 4K is beyond  me.   Although the differences are small you would have to convert them to BT.709 to stay color accurate.

Your levels are strange, your blacks are cut around 25 which is way too high, it is not normal, looking at the footage your blacks should go all the way to zero.

Did you make some changes in camera?

 

 

 

 

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Thanks again - No, I didn't make any changes in camera.

I was just now comparing the Vivid Skintone profile with some of Andrew's other profiles, and the other profiles don't have the same issue, so I wonder if it is a compatibility issue with the Vivid Skintone profile and the 1DX Mark II? Hopefully Andrew will be able to chime in, in the new year!

Yes, the cutting of the blacks was surprising and confusing to me. All detail is lost in the blacks (which isn't the case with Andrew's other profiles or Canon's profiles) and there is some strange artifacting in the blacks (for example, on the shadow sides of the pedestrians' coats), which makes the footage essentially unusable....

Hopefully there's a fix, as Andrew's Vivid Skintone profile is otherwise excellent!

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1 hour ago, Cary Knoop said:

Got the footage.

So it's 4:2:2 M-JPEG with Matrix Coefficients of BT.601.  Why Canon would use BT.601 for 4K is beyond  me.   Although the differences are small you would have to convert them to BT.709 to stay color accurate.

Your levels are strange, your blacks are cut around 25 which is way too high, it is not normal, looking at the footage your blacks should go all the way to zero.

Did you make some changes in camera?

 

 

 

 

Irrelevant to this discussion, but I've noticed from recent comments that you really dislike raised blacks?

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I don't know what I should be seeing in those images? I have a calibrated monitor and the blacks look ok to me? If there is a problem it's probably because the blacks are raised up. If the normal profiles of the camera look ok then it is operating normally right?

 

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