nobody23 wrote:
Hi
Great images!
How did you get so clean ones with ISO 25k?
With post-processing. I have a quick and dirty way in LR to do it. I do a rough brush over the subject without Auto-Mask selected that overflows onto the background. Then I use the Erase Mask with Auto-Mask On to refine the edge back to the subject...with a clean background this works very well and all in all takes me about 30sec. Then I drag the Noise slider for the brush all the way to the left. Then I take the Luminance NR setting in the main Develop panel to about 75% and detail to 25%....that really knocks out the background but leaves the bird alone...it looks even cleaner before I export but the LR export sharpening adds some noise back to the background. Also important in the Develop module to properly Mask in your Sharpening to just the subject (Hold Option/Alt while adjusting the slider for the black and white view).
For the 4000 ISO one instead of that process (especially because there is more complicated background and a lot more flower to deal with, I just put the NR at about 50% but the Detail slider up to 100%...this usually preserves most of the subject detail but does fairly good NR on the background....and again proper sharpening Masking.
Jun 24, 2018 at 09:52 AM
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