Look, no artefacts!
Avoid adding clipped pixels and horrid halos to sharpened shots
1 Reduce noise
Open sharpen_start.jpg. (You can sharpen a RAW file or a JPEG in Capture NX-D.) Zoom in to view the shot at 100%. Click on the Noise Reduction icon. Set Method to Better Quality. Drag Intensity to 18 to reduce the presence of colour and luminance noise. Push Sharpen to 2.
2 Understand artefacts
Click on the Unsharp mask icon. To understand what sort of artefacts sharpening can add, push Intensity to 100 and Radius to 50. Notice the stark black and white outlines clinging to contrasting edges? These are halos. We’ve also exaggerated noise and JPEG compression artefacts.
3 Subtle sharpening
Set the Intensity slider to a more subtle 43. Set the spread of the contrast change (Radius) to 16. Dial down the effect of the Radius and Intensity sliders a little by dragging Threshold to 15. This fine-tuning helps you keep artefacts such as noise and halos to a minimum.