Image Quality
At low ISO, the NX30 exhibits great image tonality. Since the earlier models, I have had no issues with low ISO and when I shoot in RAW, I get the same image control as my DSLR. It's the high ISO that I was not pleased with earlier models. So here I shall focus on high ISO comparison.
When studying the image in high ISO, the NX30 image processing engine attempts to eliminate ISO noise by applying noise reduction which results in loss of image details. But it is still better than the NX20's chroma noise.
The NX30 also delivers more punchy images. But if you prefer otherwise, you can always use one of the Picture Wizard presets to fine tune.
Also, when images are well-exposed, high ISO shots are very usable.
Due to lack of other camera brand models on hand, I am unable to make further comparisons. But referring to the
Nikon 1 AW1 I reviewed earlier this month, the Samsung NX30 is definitely better at high ISO noise and image details.