|1/400 | f/5.6 | ISO 1600 | 400mm|
Below is a 150% crop of the original image. It was shot at ISO 1600, so we expect there to be noise throughout.
I start off in photoshop by duplicating the background layer (Cmd/Ctrl + J). Then I apply the Reduce Noise filter (in the Filter --> Noise dropdown menu) to the duplicate layer with the settings below:
- Strength: 10 (we want to get rid of all noise)
- Preserve details: 0%
- Reduce Color Noise: 15% (if you increase this too much, you will see that you get a haloing effect around the subject - something that you don't want to remove later)
- Sharpen Details: 0% (we can sharpen later)
The results of this filter are shown below. Notice that the background is just how we want it, without any noise. However, the subject has also lost a lot of detail.
|Strong noise reduction applied to the entire image|
*In my case, I decided to use the Color Range selection tool (Select --> Color Range...) to select the sky (and then use the inverse of the selection to select the bird). I then used the dodge/burn tool to create a crisper mask.
|Noise reduction applied to background only (layer mask was used to mask out the Loggerhead Shrike)|
- Strength: 7
- Preserve details: 80%
- Reduce Color Noise: 10%
- Sharpen Details: 0%