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Reduce noise in raw images bracketed or after merge?
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Jan 10, 2019 20:04:44   #
wham121736
 
While it is quicker to merge 3-5 bracketed images in Photomatix (or other app) and then reduce noise in the merged image, is this better than reducing noise in each of the raw images and then merging them as in the below images? All images shot on Canon T6s, Sigma 150-500, F/11, ISO800.
Unknown bird (Please ID) f/11, 1/500, ISO800
Unknown bird (Please ID) f/11, 1/500, ISO800...
Unknown bird (please ID) f,11, 1/800, ISO800
Unknown bird (please ID) f,11, 1/800, ISO800...
(Download)
GBH f/11, 1/2000, ISO800
GBH f/11, 1/2000, ISO800...
(Download)

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Jan 10, 2019 20:58:42   #
CHG_CANON (a regular here)
 
Clean the noise first, before the merge. Look again too for a light noise pass after the merge.

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Jan 10, 2019 21:08:04   #
wham121736
 
Thanks for your comment.

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Jan 10, 2019 21:16:54   #
rgrenaderphoto (a regular here)
 
CHG_CANON wrote:
Clean the noise first, before the merge. Look again too for a light noise pass after the merge.




In an application like Lightroom, it is relatively to apply a change to one image, then synch to the others in the bracketed set. That way, you get a uniform application.

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Jan 11, 2019 07:30:06   #
anotherview
 
All the images appear soft -- perhaps an effect of early noise reduction.
wham121736 wrote:
While it is quicker to merge 3-5 bracketed images in Photomatix (or other app) and then reduce noise in the merged image, is this better than reducing noise in each of the raw images and then merging them as in the below images? All images shot on Canon T6s, Sigma 150-500, F/11, ISO800.

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Jan 11, 2019 10:16:25   #
pithydoug
 
anotherview wrote:
All the images appear soft -- perhaps an effect of early noise reduction.


oops

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Jan 11, 2019 10:31:13   #
canon Lee (a regular here)
 
anotherview wrote:
All the images appear soft -- perhaps an effect of early noise reduction.


I agree that at F11 everything should be sharp in focus, & applying noise reduction does soften the image. It is surprising to me that shooting in bright day light there should be little or no noise in the shadows. Why F11? F8 would give more light.

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Jan 11, 2019 10:43:13   #
wham121736
 
Still trying to find the "sweet spot" of this lens. Will experiment with f/8 or lower.


canon Lee wrote:
I agree that at F11 everything should be sharp in focus, & applying noise reduction does soften the image. It is surprising to me that shooting in bright day light there should be little or no noise in the shadows. Why F11? F8 would give more light.

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Jan 11, 2019 11:10:10   #
saxman71 (a regular here)
 
I believe the first bird may be a female yellow rumped warbler. I cannot speak to the bracketing part of your question, but reducing noise continues to be a journey for me. I use Photoshop CC and have not really hit on a noise reduction strategy that is making me super happy. I've also tried Topaz and DXO on their 30 day free trials and just haven't seen enough noise improvement to make me want to purchase either product. I find I get the closest to an acceptable level of noise by masking it out in ACR by area. The background gets more noise reduction and the principal subject gets a little bit less to preserve important details. I am certainly open to new ideas and methods.

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Jan 12, 2019 03:20:00   #
TheShoe
 
rgrenaderphoto wrote:


In an application like Lightroom, it is relatively to apply a change to one image, then synch to the others in the bracketed set. That way, you get a uniform application.
Do you want uniform application for differing exposures? Isn't it likely that the noise will be distributed differently?

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Jan 12, 2019 15:22:38   #
Gene51 (a regular here)
 
wham121736 wrote:
While it is quicker to merge 3-5 bracketed images in Photomatix (or other app) and then reduce noise in the merged image, is this better than reducing noise in each of the raw images and then merging them as in the below images? All images shot on Canon T6s, Sigma 150-500, F/11, ISO800.


I merge, then denoise. But I merge to dng in Lightroom or Photoshop. Sometimes I use Photomatix for tone mapping, but after I denoise.

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Jan 12, 2019 21:26:18   #
Einreb92 (a regular here)
 
I have great success with the top version of DXO. I think the little bird is a kinglet: I shot one in the yard today.

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Jan 13, 2019 00:26:04   #
Curmudgeon (a regular here)
 
This probably won't help but first I use the auto function in Lightroom develop module and then move to Photoshop where I am more comfortable.

As far as the first bird: I am sure it's not a Yellow-rumped Warbler for two reasons. The rump patch is wrong and the striped crown is not found on a butter-butt. Striped crown also eliminates the RC Kinglet. Having said that I have absolutely no idea what it is.

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Jan 13, 2019 01:09:50   #
Einreb92 (a regular here)
 
Curmudgeon wrote:
This probably won't help but first I use the auto function in Lightroom develop module and then move to Photoshop where I am more comfortable.

As far as the first bird: I am sure it's not a Yellow-rumped Warbler for two reasons. The rump patch is wrong and the striped crown is not found on a butter-butt. Striped crown also eliminates the RC Kinglet. Having said that I have absolutely no idea what it is.
This probably won't help but first I use the auto ... (show quote)


Good call on the details of the bird.

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Jan 18, 2019 13:42:54   #
wham121736
 
Curmudgeon wrote:
This probably won't help but first I use the auto function in Lightroom develop module and then move to Photoshop where I am more comfortable.

As far as the first bird: I am sure it's not a Yellow-rumped Warbler for two reasons. The rump patch is wrong and the striped crown is not found on a butter-butt. Striped crown also eliminates the RC Kinglet. Having said that I have absolutely no idea what it is.
This probably won't help but first I use the auto ... (show quote)


What about a female Golden-crowned Kinglet?

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