Center-Weighted; Multi - Samsung NX100 User Manual

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Center-weighted

The Center-weighted mode calculates a broader area than the Spot
mode does. It sums up the amount of light in the center portion of
the shot (60 ~ 80%) and that of the rest of the shot (20 ~ 40%). It
is recommended for situations where there is a slight difference in
brightness between a subject and a background or an area of the
subject is large compared to the overall composition of the photo.

Multi

The Multi mode calculates the amount of light in multiple areas. When
light is sufficient or insufficient, the camera adjusts the exposure by
averaging the overall brightness of the scene. This mode is suitable for
general photos.
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