How can I implement the 30-second long exposure of the built-in night mode?

I tried stacking 30 RAW exposures of 1 second each, but the quality is far inferior to the 30-second long exposure in night mode.

These are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding.

Your question is more of a product support one, so I'd suggest you ask it over at the Apple Support Forums. Thanks.

How can I implement the 30-second long exposure of the built-in night mode?
 
 
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