What makes the Nikon ZR different from other Nikon mirrorless cameras?

It is a dedicated cinema body with RED color science and internal 12-bit REDCODE RAW, which no other Nikon mirrorless offers. It also has a 4-inch articulating screen and 7.5-stop stabilization in a 1.19 lb body.

Can it record 6K RAW internally?

Yes. It records 6K/60p and 4K/120p internally in 12-bit REDCODE RAW, N-RAW or ProRes RAW. That gives flexibility in post without an external recorder.

How long can it record continuously?

Nikon rates the passive cooling for over two hours of uninterrupted recording. Actual time depends on resolution, frame rate and ambient temperature.

Does it have built-in ND filters?

No. You will need front-of-lens or matte box ND filtration for bright conditions.

What lenses fit the Nikon ZR?

It uses the Nikon Z mount, so NIKKOR Z lenses and third-party Z-mount lenses fit directly. F-mount and other lenses need an adapter.

Is the autofocus good enough for documentary work?

It uses deep-learning autofocus with 9-subject detection for people, animals and vehicles. That makes it usable for solo shooting, though manual focus remains common in cinema work.