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Thread started 09 Apr 2014 (Wednesday) 18:15
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7D noise

 
crimsonblack
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Apr 09, 2014 22:33 |  #16

I shoot as much during the evening as I do during the day her in Las Vegas. The higher ISO has not been an issue.

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Apr 09, 2014 22:46 |  #17

madasax wrote in post #16822361 (external link)
Are you saying with the meter right in the middle at ISO 800?

No, generally I expose to the right as far as I can without irrecoverably clipping highlights (watching the histogram), then back it down in post. Raw + good software like Lightroom or Photoshop = lots of latitude to get a clean image out. I have an import setting for each ISO value to speed up the process a bit.


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madasax
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Apr 09, 2014 22:49 |  #18

Thanks I'll just have to try that a bit more. I use LR4 so I know I can correct it in post. Don't get me wrong I have gotten useable shots @ higher ISO on my 7D I just wanted to make sure that this is more or less a "common" with the 7D bodies. I'll post some pics when I can hop on a work computer


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Apr 09, 2014 22:53 as a reply to  @ madasax's post |  #19

I have found that you just need a little faith in the camera and your ability to properly expose the image. A non-ETTR image is still pretty usable at 6400 but I re-took a few just now and tossed them in with ETTR and they look even better.


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pyrojim
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Apr 10, 2014 03:57 |  #20

MakisM1 wrote in post #16822609 (external link)
ISO 12800 o0n the 60D... Before and after (NR)

QUOTED IMAGE
IMAGE LINK: http://s37.photobucket​.com …3001_zps645c49d​a.jpg.html  (external link)

The 7D has an identical sensor with a more heavy-handed AA filter from what I read. No significant differences in noise


I swear image processing gets more and more slick as time goes on. I've never looked into noise reduction so seeing an example like that looks like magic to me.

I suppose I have to take the Wavelets class when it's offered next...


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stargazer77517
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Apr 10, 2014 06:17 |  #21

Brain Mechanic wrote in post #16822341 (external link)
Canon 7D, ISO 3200

QUOTED IMAGE
IMAGE LINK: https://www.flickr.com …_photography/12​997358783/  (external link)
IMG_4347-Edit-Edit (external link) por nenekinkin (external link), en Flickr


If you don't shoot the 7D above ISO 200 there us something wrong with your camera or the learning curve it requires has overwhelmed you. Perhaps my 7D is a freak which I highly doubt. Once Team Speed shows up in this thread it will be clear that the 7D is more capable than a few, but vocal, misinformed people credit it for.

+2 I have no problem pushing the ISO on mine.


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sporadic
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Apr 10, 2014 07:12 |  #22

Here's two examples at 3200 & 6400 on a 7D from our Disney trip last year. Not great, but it's what I had online. It's more noticeable in the darker areas but not really an issue unless you're pixel peeping. I have no issues shooting 3200-6400 on mine with basic NR in Lightroom. There's a faint horizontal line about 1/4 down from the top that was a sensor issue I had to get fixed.

ISO3200

IMAGE: https://farm8.staticflickr.com/7399/9084583718_e76a8de720_b.jpg
IMAGE LINK: https://flic.kr/p/eQLS​eL  (external link)

ISO6400
IMAGE: https://farm4.staticflickr.com/3676/9084571390_7e7ca734a0_b.jpg
IMAGE LINK: https://flic.kr/p/eQLN​zd  (external link)

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Jim_T
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Apr 10, 2014 07:23 |  #23

Under some circumstances, if I pixel peep, I find a bit of grain in blue areas, (especially the sky). But, it doesn't happen all the time. The most used ISOs on my 7D are 200 and 400. Both provide great results.




  
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Apr 10, 2014 07:34 |  #24

7D @ 12,800. NR using CS6. The 7D sensor is light hungry. Underexposure is not forgiving.

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madasax
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Apr 10, 2014 07:53 |  #25

So from what I am gathering I really just need to find out a good way for my shooting to use NR in Lightroom - overexpose rather than under - try ETTR - Stop pixel peeping on monitor that is bigger than the 8 x 10 prints that are usually the bigger prints in the house - and just use RAW/ETTR


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TeamSpeed
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Apr 10, 2014 07:58 |  #26

madasax wrote in post #16823339 (external link)
So from what I am gathering I really just need to find out a good way for my shooting to use NR in Lightroom - overexpose rather than under - try ETTR - Stop pixel peeping on monitor that is bigger than the 8 x 10 prints that are usually the bigger prints in the house - and just use RAW/ETTR

Really quick tips:

- Keep your histograms at least centered, but to the right if at all possible.
- Don't sharpen your images (either through picture styles or editors' sharpening sliders" until you have taken care of the noise, noise clean up should occur in the very early stages of post processing
- Look at the noise on each color channel, each channel needs different attention paid to it (very minor tweaks), then do one final clean up on the overall rgb channel (a bit more aggressive).
- Then do micro contrast, saturation and sharpening at the end

I ended up developing a single action that I can run on the different cameras that does most of this. It handles noise in multiple runs, enhances contrast and sharpening at different points, etc. When I shoot high ISO shots, depending on what I see for noise characteristics, I run a particular action previously developed.

My thread on how to get the most out of 7D high ISO covers these along with other items in more detail.

My samples...

7D at 6400, 100% crops, bottom shows OOC, middle shows Raw to JPG, and top shows my post processing on that middle crop.

IMAGE: http://teamspeed.smugmug.com/Electronics/7D-Full-ISO-JPG-Suite-OOC/i-vMp8SHF/0/O/7dtestcomparo2.jpg

Here is a 6400 sports shot, then a crop showing OOC, then a crop showing my cleanup of the raw. More detail and less noise this way...
IMAGE: http://teamspeed.smugmug.com/Electronics/7D-Full-ISO-JPG-Suite-OOC/i-hp532d9/0/O/7da.jpg
IMAGE: http://teamspeed.smugmug.com/Electronics/7D-Full-ISO-JPG-Suite-OOC/i-KpvmnSm/0/O/7db.jpg
IMAGE: http://teamspeed.smugmug.com/Electronics/7D-Full-ISO-JPG-Suite-OOC/i-6Ls9GQ4/0/O/7dc.jpg

Here is what using the CS3 noise reduction tool looks like vs the action I developed using the steps outlined. A visual difference...
IMAGE: http://teamspeed.smugmug.com/Electronics/7D-Full-ISO-JPG-Suite-OOC/i-VMTkLnD/0/XL/noisereduction-XL.jpg

Good luck!

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Apr 10, 2014 08:08 as a reply to  @ TeamSpeed's post |  #27

I am using the same basic techniques, just tweaked a bit with the 5D3 to get ISO 16000 shots much like my 6400 shots on the 7D.

IMAGE: http://gerberphotos.smugmug.com/Sports-Events/Mad-Ants-20132014-/i-M344sfB/0/X3/5P1B8467-X3.jpg

12800 is a breeze right now. The only big issue for me is the decreased DR the higher up the ISO scale I go.
IMAGE: http://gerberphotos.smugmug.com/Sports-Events/Mad-Ants-20132014-/i-sf3F2x5/0/X3/5P1B8181-X3.jpg

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Apr 10, 2014 08:08 |  #28

madasax wrote in post #16823339 (external link)
So from what I am gathering I really just need to find out a good way for my shooting to use NR in Lightroom - overexpose rather than under - try ETTR - Stop pixel peeping on monitor that is bigger than the 8 x 10 prints that are usually the bigger prints in the house - and just use RAW/ETTR

I'm no expert on NR, but it works for me. I always shoot RAW and to the right a little. In my workflow, NR and sharpening are the last two things I do before I export. I can usually find a setting that works for one image and sync it to the entire set for a given ISO. I start with setting Luminance NR around 20-40 for ISO800-6400. I set sharpening around 40-60 and set the mask based on the detail of the set. Usually ends up being 70-90 on the mask for me. Hold down ALT when adjusting the mask to see what will be sharpened. For me, this has been "good enough" and should be a good start. I've yet to spend the time learning the rest of the NR adjustments in LR.


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Apr 10, 2014 08:22 |  #29

Brain Mechanic wrote in post #16822364 (external link)
A few more examples at 3200 ...

The 7D requires commitment, its not an easy camera to work with but its not the antichrist like some here think.

Well said! And truthful.


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Apr 10, 2014 08:39 |  #30

sporadic wrote in post #16823354 (external link)
I'm no expert on NR, but it works for me. I always shoot RAW and to the right a little. In my workflow, NR and sharpening are the last two things I do before I export. I can usually find a setting that works for one image and sync it to the entire set for a given ISO. I start with setting Luminance NR around 20-40 for ISO800-6400. I set sharpening around 40-60 and set the mask based on the detail of the set. Usually ends up being 70-90 on the mask for me. Hold down ALT when adjusting the mask to see what will be sharpened. For me, this has been "good enough" and should be a good start. I've yet to spend the time learning the rest of the NR adjustments in LR.

NR is easy. You are right on with the mask.

LR/ACR colour noise defaults at 25 which is pretty good for most applications. I turned it down so you could see the results.

Original

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First adjust the colour slider until the blotchiness goes away. When it looks good stop. If you move the slider more there is no gain and you will start to change colour hues.

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Next adjust the luminance slider until the grain goes away to taste. This is a balancing act as this adjustment effects sharpening.

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CS5 video but it is the same thing. A little more detail on the other sliders.

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