privatebydesign said:
AlanF and unfocused, I'd be very interested in comparisons you have that made yu choose Nik over PS for noise reduction.
That's an interesting request. Candidly, I had never made any comparisons. I don't like to apply noise reduction during raw processing. I'd rather wait until the end. I also like simplicity. I'm usually under time constraints and the one-click and your done features of Nik fit my working style.
So, I just now decided to try some comparisons. Keep in mind that I've never used the noise reduction filter in Photoshop, so this is a first attempt.
First, the original image, which was processed, straightened and cropped slightly, with no noise reduction. (Shot with a 1DX II at 6400 ISO)
Next, is a crop from the original with no noise reduction applied.
Then, we have the Photoshop default noise reduction filter
The Define 2 default filter
The Photoshop filter with strength of 10, preserve detail of 7, Reduce color noise of 72% and sharpen details at 0%. In this case, I was trying to match the noise level of the background in the Define image as closely as possible.
The differences are subtle and when printed or posted, I'm not sure it would make all that much difference. I use Define 2 because it's quick and fits my workflow because I need to process photos from games pretty quickly.