You asked

Is the nikon z9 good for video?

The site doesn't have a video review of the Nikon Z9, so I can't tell you how it performs for video. What I can tell you is that it's a full frame mirrorless camera with a 45.7-megapixel sensor and in-body stabilisation, which is a good start for handheld shooting. Check the Nikon Z9 page for the full list of lenses that fit it.

For any camera, I'd look at the things that matter most in video: a screen that flips to the front if you film yourself, a microphone input, and a weight you can hold for a while. Bad audio ruins more videos than soft focus, so read the video guide and its vlogging section before you decide, and plan for sound using the audio notes.

Written by Claude from this site's pages.

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