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Archive 2012 · 5d iii help: horrible over saturated reds.

  
 
morganb4
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p.1 #1 · 5d iii help: horrible over saturated reds.


Was just in the national rail museum in York. Took an image that I didn't think was too challenging but he red of the buffer plate at the front of an engine was horribly over saturated. I had to underexposed about 2 stops just to get it back in range.

What happens if I get a wedding and the bridesmaids have red dresses? I hope I haven't bought another lemon that will spend he first year of its life in canons workshops...


Anyone else seen this.



Jun 03, 2012 at 05:05 PM
philber
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p.1 #2 · 5d iii help: horrible over saturated reds.


Nope, nothing of the sort. Posting the pic would go a long way towards enabling you to get better feedback, methinks.


Jun 03, 2012 at 05:07 PM
morganb4
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p.1 #3 · 5d iii help: horrible over saturated reds.


Yeah I know, sorry, not possible at moment. Will do though.


Jun 03, 2012 at 05:09 PM
jaybird555
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p.1 #4 · 5d iii help: horrible over saturated reds.


Are you shooting raw or jpeg ?


Jun 03, 2012 at 05:13 PM
ultrapix
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p.1 #5 · 5d iii help: horrible over saturated reds.


I had some similar issues, too;
that's my workaround: RAW; Adobe RGB; in LR4, select Adobe RGB, not camera profiles; I also had to lower the contrast, and to reduce the amount of blacks; this way I perfectly matched my 1D MKIV that is my reference for colors.



Jun 03, 2012 at 05:40 PM
garyvot
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p.1 #6 · 5d iii help: horrible over saturated reds.


You can tune the colors out of the camera using either the built-in Picture Styles, or camera profiles (if using Adobe's software).

Canon's 'Standard' picture style tends to oversaturate reds. Sometimes it's pleasing, but sometimes not. Use Neutral instead. Or if using Adobe Camera RAW or Lightroom, use Adobe's Standard profile in preference to their Canon clones. Whichever profile you choose, you can fine tune from there.

Others on this forum have made custom profiles using color checkers, a search should help you find out what to do.



Jun 03, 2012 at 05:50 PM
PhilDrinkwater
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p.1 #7 · 5d iii help: horrible over saturated reds.


If you want correct colours, look at RAW with a Colour Checker Passport profile There's no problem with the camera (unless yours is faulty, which I'd say was unlikely) but you need to get the post production how you want it.

I don't shoot JPEG so if that's what you shoot I'm afraid I can't really help..



Jun 03, 2012 at 05:50 PM
Pixel Perfect
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p.1 #8 · 5d iii help: horrible over saturated reds.


It's a common problem with Canon cameras and is well known, not just a perception by the OP. Choosing a neutral or faithful picture style will help a lot whether you shoot jpg, or if you shoot RAW choose these styles in ACR/LR calibration (DPP will apply what was in camera by default, but you can alter this of course for RAW)


Jun 03, 2012 at 06:26 PM
mco_970
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p.1 #9 · 5d iii help: horrible over saturated reds.


Just went through the same thing with 5D2 and reds. See this thread.

https://www.fredmiranda.com/forum/topic/1116997/0?keyword=red#10665849

My primary problems ranged from LR3 histogram being inaccurate to color gamut issues with my monitor. That said, I am shooting saturated reds/yellows from my garden mostly with my 1D3 now and processing in CS5 instead of LR3. I think 1D3's color curve is less complex to process.



Jun 03, 2012 at 06:38 PM
Ben Horne
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p.1 #10 · 5d iii help: horrible over saturated reds.


morganb4 wrote:
Was just in the national rail museum in York. Took an image that I didn't think was too challenging but he red of the buffer plate at the front of an engine was horribly over saturated. I had to underexposed about 2 stops just to get it back in range.

What happens if I get a wedding and the bridesmaids have red dresses? I hope I haven't bought another lemon that will spend he first year of its life in canons workshops...

Anyone else seen this.


Nearly every digital camera will have a problem with red. Some cameras will error on the side of making the reds super red, others will got a bit magenta. This really isn't anything new with digital photography.



Jun 03, 2012 at 06:58 PM
John Mills
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p.1 #11 · 5d iii help: horrible over saturated reds.


Set your camera to neutral setting to reduce saturation.


Jun 03, 2012 at 07:07 PM
Gochugogi
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p.1 #12 · 5d iii help: horrible over saturated reds.


Every digital camera I've owned blows the red channel and has a noisy blue channel. It's the nature of the beast. So, when shooting red flowers I always shoot RAW and set neutral as the Pic style (for LCD histogram accuracy only). Once in Aperture or PS it's easy to control the reds without toning down the other colors or exposure. In extreme cases I process the file twice, once for overall appearance and another for the reds, blending the two for optimal results.


Jun 03, 2012 at 07:30 PM
gdanmitchell
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p.1 #13 · 5d iii help: horrible over saturated reds.


The general histogram averages the values among the R, G, and B channels. If you rely on it for photographing a subject that is very hot in one of the channels (usually but not always the red channel) you will blow that channel even though the average histogram display doesn't show it. Use the three channel display that shows the R, G, and B channels separately. And, if you have very intense colors in one channel, be cautious and shoot perhaps a stop below "to the right" exposure.

This is not an issue that relates to a particular camera or a particular brand - it is the nature of digital sensor capture.

Dan



Jun 03, 2012 at 08:26 PM
morganb4
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p.1 #14 · 5d iii help: horrible over saturated reds.


I shoot raw.
It's blown, so far it's gone yellow.
I have never experienced this on any other camera.



Jun 04, 2012 at 01:08 AM
JameelH
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p.1 #15 · 5d iii help: horrible over saturated reds.


5D Mark II has the 'red' issue as well. I created my own profile with the free adobe profile editor under the light conditions I needed. With that the problem is well under control. Neither Camera neutral nor the adobe profile is very good.

Don't have the Mark III yet, so cannot comment. The Nikons don't appear to have as serious an issue with blown red channels from what I have heard from the Nikon folks. I dont have any 1st hand experience though



Jun 04, 2012 at 01:39 AM
PhilDrinkwater
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p.1 #16 · 5d iii help: horrible over saturated reds.


Could you make the image available on Dropbox or something (the raw file) and I'll take a look at it? It might now be a camera issue at all - might be adobe twisted hue profiles - but I won't know unless I see it.


Jun 04, 2012 at 02:05 AM
jj_glos
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p.1 #17 · 5d iii help: horrible over saturated reds.


I've just had the same issue with my 1Ds2 and Ferrari cars racing in the sun, I couldn't get near to the red colour they should be. I need to learn how to sort this in the future!


Jun 04, 2012 at 02:38 AM
skibum5
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p.1 #18 · 5d iii help: horrible over saturated reds.


jj_glos wrote:
I've just had the same issue with my 1Ds2 and Ferrari cars racing in the sun, I couldn't get near to the red colour they should be. I need to learn how to sort this in the future!


part of the problem is sRGB doesn't contain many of those reds, so it doesn't matter what you do or what camera if you stick to sRGB, gotta go wide gamut



Jun 04, 2012 at 03:46 AM
jj_glos
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p.1 #19 · 5d iii help: horrible over saturated reds.


skibum5 wrote:
part of the problem is sRGB doesn't contain many of those reds, so it doesn't matter what you do or what camera if you stick to sRGB, gotta go wide gamut


This is before I even get to the output stage and setting sRGB. I'm using Lightroom so AdobeRGB until I export, unless I'm missing something along the way?



Jun 04, 2012 at 03:51 AM
ausemmao
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p.1 #20 · 5d iii help: horrible over saturated reds.


As the others have said, I don't think it's a problem unique to the 5D3 - My D7000 and D3100 do it and the D700 and D800s I've tried do as well - it's due to the amplification applied to the signal. If the red channel is properly clipping, the only thing I know of that works is to go into 3 channel histogram at exposure time and make sure red doesn't clip, which usually involves a stop or more of "underexposure".

With that said, what skibum is referring to is that the profiles that LR applies can provoke clipping where there is none in the raw file. Setting the LR colourspace to prophoto RGB and then manipulating it in there could mitigate the problem.

JameelH wrote:
Don't have the Mark III yet, so cannot comment. The Nikons don't appear to have as serious an issue with blown red channels from what I have heard from the Nikon folks. I dont have any 1st hand experience though


Hahahahahahhaaha. I wish that were true. When people talk about not liking Nikon skin tones, it's usually because they've unknowingly run into this. The orange/yellow shift it creates is not pleasant.



Jun 04, 2012 at 04:33 AM
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