CW_3 : Noise reduction

ISO 100 f2.8 1/1250sec noise reduction : high

ISO 100 f2.8 1/1250sec noise reduction : medium

ISO 100 f2.8 1/1250sec noise reduction : low

ISO 100 f2.8 1/1250sec noise reduction : none

ISO 800 f4.5 1/3200sec noise reduction : high

ISO 800 f4.5 1/3200sec noise reduction : medium

 ISO 800 f4.5 1/3200sec noise reduction : low

ISO 800 f4.5 1/3200sec noise reduction : none

ISO 3200 f9 1/4000sec noise reduction : high

ISO 3200 f9 1/4000sec noise reduction : medium

ISO 3200 f9 1/4000sec noise reduction : low

ISO 3200 f9 1/4000sec noise reduction : none

There is a difference in sharpness and noise between the different noise reduction amounts. In fact, you can see that the picture is softer with a high reduction mode than without the noise reduction. I think a high noise reduction can be usefully in night photography, when your camera needs a high ISO, which created a lot of noise.I think the best result of a well exposed scene is the medium noise reduction level, because the high noise reduction is too soft and the low noise reduction too noisy.