The Kiwi's Tutorials

For Photoshop CS2, CS3,CS4

Before noise reduction

Noise Reduction

All images are linked to the bigger one click on the  image and it will open in a new window.

HOW I USE THE NOISE FILTER IN PHOTOSHOP

Open your image in photoshop create a layer copy use the keys Ctrl + J zoom into 100% (quick way is to double click the magnifying glass)
When doing things like noise reduction sharpen always zoom to 100% first. AND ALWAYS DO THE NOISE REDUCTION if it is needed FIRST!!
Bring up the noise reduction filter which is under Filter | Noise | Reduce Noise.
 That will open the reduce noise filter -- Best practice is to reset the sliders all back to zero. Then gradually bring up the sliders until
you get the desired results. Because noise reduction is a smoothing filter you will need to adjust your preserve details slider and sharpen
Don't over do these sliders the top slider is the luminance noise and the 3rd slider is the color noise slider adjust both till the noise disappears.

after