Nikon D500 技术手册

When  shooting  multiple  exposures,  choose  an  overlay 

mode according to the situation and your creative intent.

• Add: Overlay exposures without modification.

• Average: Overall brightness is optimized by adjusting gain 

according to the number of exposures.

• Lighten: The camera compares the pixels in each exposure 

and chooses only the brightest.

• Darken: The camera compares the pixels in each exposure 

and chooses only the darkest. Choose this option if your 

subject contrasts strongly with the background.