Q2: What are OSD, NR, WDR, ATR, HLC?

a, OSD: On-Screen Display. It is a menu showing all functions on the screen
b, NR: Noise Reduction. When it is night, NR can make the snow point on the screen less to make the image clear.

c, WDR: Wide Dynamic Range. When the camera faces the strong light area, WDR can make those very dark areas lighter and make those very light areas clear.

d, ATR: Adaptive Tone-curve Reproduction(Digital Wide Dynamic Range).

e, HLC: High Light Compensation.

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